1978557840

素因数分解:

$2^4\times 3^4\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{823}}^1$

素因数の和:908

約数の個数: 400

約数和(自身を含む): 8011415808

約数和(自身を除く): 6032857968

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 53, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 105, 106, 108, 112, 120, 126, 135, 140, 144, 159, 162, 168, 180, 189, 210, 212, 216, 240, 252, 265, 270, 280, 315, 318, 324, 336, 360, 371, 378, 405, 420, 424, 432, 477, 504, 530, 540, 560, 567, 630, 636, 648, 720, 742, 756, 795, 810, 823, 840, 848, 945, 954, 1008, 1060, 1080, 1113, 1134, 1260, 1272, 1296, 1431, 1484, 1512, 1590, 1620, 1646, 1680, 1855, 1890, 1908, 2120, 2160, 2226, 2268, 2385, 2469, 2520, 2544, 2835, 2862, 2968, 3024, 3180, 3240, 3292, 3339, 3710, 3780, 3816, 4115, 4240, 4293, 4452, 4536, 4770, 4938, 5040, 5565, 5670, 5724, 5761, 5936, 6360, 6480, 6584, 6678, 7155, 7407, 7420, 7560, 7632, 8230, 8586, 8904, 9072, 9540, 9876, 10017, 11130, 11340, 11448, 11522, 12345, 12720, 13168, 13356, 14310, 14814, 14840, 15120, 16460, 16695, 17172, 17283, 17808, 19080, 19752, 20034, 21465, 22221, 22260, 22680, 22896, 23044, 24690, 26712, 28620, 28805, 29628, 29680, 30051, 32920, 33390, 34344, 34566, 37035, 38160, 39504, 40068, 42930, 43619, 44442, 44520, 45360, 46088, 49380, 50085, 51849, 53424, 57240, 57610, 59256, 60102, 65840, 66663, 66780, 68688, 69132, 74070, 80136, 85860, 86415, 87238, 88884, 89040, 92176, 98760, 100170, 103698, 111105, 114480, 115220, 118512, 120204, 130857, 133326, 133560, 138264, 148140, 150255, 155547, 160272, 171720, 172830, 174476, 177768, 197520, 200340, 207396, 218095, 222210, 230440, 240408, 259245, 261714, 266652, 267120, 276528, 296280, 300510, 305333, 311094, 333315, 343440, 345660, 348952, 355536, 392571, 400680, 414792, 436190, 444420, 460880, 466641, 480816, 518490, 523428, 533304, 592560, 601020, 610666, 622188, 654285, 666630, 691320, 697904, 777735, 785142, 801360, 829584, 872380, 888840, 915999, 933282, 1036980, 1046856, 1066608, 1177713, 1202040, 1221332, 1244376, 1308570, 1333260, 1382640, 1526665, 1555470, 1570284, 1744760, 1777680, 1831998, 1866564, 1962855, 2073960, 2093712, 2333205, 2355426, 2404080, 2442664, 2488752, 2617140, 2666520, 2747997, 3053330, 3110940, 3140568, 3489520, 3533139, 3663996, 3733128, 3925710, 4147920, 4579995, 4666410, 4710852, 4885328, 5234280, 5333040, 5495994, 5888565, 6106660, 6221880, 6281136, 7066278, 7327992, 7466256, 7851420, 8243991, 9159990, 9332820, 9421704, 10468560, 10991988, 11777130, 12213320, 12443760, 13739985, 14132556, 14655984, 15702840, 16487982, 17665695, 18319980, 18665640, 18843408, 21983976, 23554260, 24426640, 24731973, 27479970, 28265112, 31405680, 32975964, 35331390, 36639960, 37331280, 41219955, 43967952, 47108520, 49463946, 54959940, 56530224, 65951928, 70662780, 73279920, 82439910, 94217040, 98927892, 109919880, 123659865, 131903856, 141325560, 164879820, 197855784, 219839760, 247319730, 282651120, 329759640, 395711568, 494639460, 659519280, 989278920, 1978557840]

約数ペア:

[(1, 1978557840), (2, 989278920), (3, 659519280), (4, 494639460), (5, 395711568), (6, 329759640), (7, 282651120), (8, 247319730), (9, 219839760), (10, 197855784), (12, 164879820), (14, 141325560), (15, 131903856), (16, 123659865), (18, 109919880), (20, 98927892), (21, 94217040), (24, 82439910), (27, 73279920), (28, 70662780), (30, 65951928), (35, 56530224), (36, 54959940), (40, 49463946), (42, 47108520), (45, 43967952), (48, 41219955), (53, 37331280), (54, 36639960), (56, 35331390), (60, 32975964), (63, 31405680), (70, 28265112), (72, 27479970), (80, 24731973), (81, 24426640), (84, 23554260), (90, 21983976), (105, 18843408), (106, 18665640), (108, 18319980), (112, 17665695), (120, 16487982), (126, 15702840), (135, 14655984), (140, 14132556), (144, 13739985), (159, 12443760), (162, 12213320), (168, 11777130), (180, 10991988), (189, 10468560), (210, 9421704), (212, 9332820), (216, 9159990), (240, 8243991), (252, 7851420), (265, 7466256), (270, 7327992), (280, 7066278), (315, 6281136), (318, 6221880), (324, 6106660), (336, 5888565), (360, 5495994), (371, 5333040), (378, 5234280), (405, 4885328), (420, 4710852), (424, 4666410), (432, 4579995), (477, 4147920), (504, 3925710), (530, 3733128), (540, 3663996), (560, 3533139), (567, 3489520), (630, 3140568), (636, 3110940), (648, 3053330), (720, 2747997), (742, 2666520), (756, 2617140), (795, 2488752), (810, 2442664), (823, 2404080), (840, 2355426), (848, 2333205), (945, 2093712), (954, 2073960), (1008, 1962855), (1060, 1866564), (1080, 1831998), (1113, 1777680), (1134, 1744760), (1260, 1570284), (1272, 1555470), (1296, 1526665), (1431, 1382640), (1484, 1333260), (1512, 1308570), (1590, 1244376), (1620, 1221332), (1646, 1202040), (1680, 1177713), (1855, 1066608), (1890, 1046856), (1908, 1036980), (2120, 933282), (2160, 915999), (2226, 888840), (2268, 872380), (2385, 829584), (2469, 801360), (2520, 785142), (2544, 777735), (2835, 697904), (2862, 691320), (2968, 666630), (3024, 654285), (3180, 622188), (3240, 610666), (3292, 601020), (3339, 592560), (3710, 533304), (3780, 523428), (3816, 518490), (4115, 480816), (4240, 466641), (4293, 460880), (4452, 444420), (4536, 436190), (4770, 414792), (4938, 400680), (5040, 392571), (5565, 355536), (5670, 348952), (5724, 345660), (5761, 343440), (5936, 333315), (6360, 311094), (6480, 305333), (6584, 300510), (6678, 296280), (7155, 276528), (7407, 267120), (7420, 266652), (7560, 261714), (7632, 259245), (8230, 240408), (8586, 230440), (8904, 222210), (9072, 218095), (9540, 207396), (9876, 200340), (10017, 197520), (11130, 177768), (11340, 174476), (11448, 172830), (11522, 171720), (12345, 160272), (12720, 155547), (13168, 150255), (13356, 148140), (14310, 138264), (14814, 133560), (14840, 133326), (15120, 130857), (16460, 120204), (16695, 118512), (17172, 115220), (17283, 114480), (17808, 111105), (19080, 103698), (19752, 100170), (20034, 98760), (21465, 92176), (22221, 89040), (22260, 88884), (22680, 87238), (22896, 86415), (23044, 85860), (24690, 80136), (26712, 74070), (28620, 69132), (28805, 68688), (29628, 66780), (29680, 66663), (30051, 65840), (32920, 60102), (33390, 59256), (34344, 57610), (34566, 57240), (37035, 53424), (38160, 51849), (39504, 50085), (40068, 49380), (42930, 46088), (43619, 45360), (44442, 44520)]