1378919680

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{59}}^1$

素因数の和:161

約数の個数: 216

約数和(自身を含む): 3653445600

約数和(自身を除く): 2274525920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 59, 62, 64, 76, 80, 95, 118, 124, 128, 152, 155, 160, 190, 236, 248, 256, 295, 304, 310, 320, 380, 472, 496, 589, 590, 608, 620, 640, 760, 944, 961, 992, 1121, 1178, 1180, 1216, 1240, 1280, 1520, 1829, 1888, 1922, 1984, 2242, 2356, 2360, 2432, 2480, 2945, 3040, 3658, 3776, 3844, 3968, 4484, 4712, 4720, 4805, 4864, 4960, 5605, 5890, 6080, 7316, 7552, 7688, 7936, 8968, 9145, 9424, 9440, 9610, 9920, 11210, 11780, 12160, 14632, 15104, 15376, 17936, 18259, 18290, 18848, 18880, 19220, 19840, 22420, 23560, 24320, 29264, 30752, 34751, 35872, 36518, 36580, 37696, 37760, 38440, 39680, 44840, 47120, 56699, 58528, 61504, 69502, 71744, 73036, 73160, 75392, 75520, 76880, 89680, 91295, 94240, 113398, 117056, 123008, 139004, 143488, 146072, 146320, 150784, 153760, 173755, 179360, 182590, 188480, 226796, 234112, 246016, 278008, 283495, 286976, 292144, 292640, 307520, 347510, 358720, 365180, 376960, 453592, 468224, 556016, 566990, 584288, 585280, 615040, 695020, 717440, 730360, 753920, 907184, 1077281, 1112032, 1133980, 1168576, 1170560, 1230080, 1390040, 1434880, 1460720, 1814368, 2154562, 2224064, 2267960, 2337152, 2341120, 2780080, 2921440, 3628736, 4309124, 4448128, 4535920, 4674304, 5386405, 5560160, 5842880, 7257472, 8618248, 8896256, 9071840, 10772810, 11120320, 11685760, 14514944, 17236496, 18143680, 21545620, 22240640, 23371520, 34472992, 36287360, 43091240, 44481280, 68945984, 72574720, 86182480, 137891968, 172364960, 275783936, 344729920, 689459840, 1378919680]

約数ペア:

[(1, 1378919680), (2, 689459840), (4, 344729920), (5, 275783936), (8, 172364960), (10, 137891968), (16, 86182480), (19, 72574720), (20, 68945984), (31, 44481280), (32, 43091240), (38, 36287360), (40, 34472992), (59, 23371520), (62, 22240640), (64, 21545620), (76, 18143680), (80, 17236496), (95, 14514944), (118, 11685760), (124, 11120320), (128, 10772810), (152, 9071840), (155, 8896256), (160, 8618248), (190, 7257472), (236, 5842880), (248, 5560160), (256, 5386405), (295, 4674304), (304, 4535920), (310, 4448128), (320, 4309124), (380, 3628736), (472, 2921440), (496, 2780080), (589, 2341120), (590, 2337152), (608, 2267960), (620, 2224064), (640, 2154562), (760, 1814368), (944, 1460720), (961, 1434880), (992, 1390040), (1121, 1230080), (1178, 1170560), (1180, 1168576), (1216, 1133980), (1240, 1112032), (1280, 1077281), (1520, 907184), (1829, 753920), (1888, 730360), (1922, 717440), (1984, 695020), (2242, 615040), (2356, 585280), (2360, 584288), (2432, 566990), (2480, 556016), (2945, 468224), (3040, 453592), (3658, 376960), (3776, 365180), (3844, 358720), (3968, 347510), (4484, 307520), (4712, 292640), (4720, 292144), (4805, 286976), (4864, 283495), (4960, 278008), (5605, 246016), (5890, 234112), (6080, 226796), (7316, 188480), (7552, 182590), (7688, 179360), (7936, 173755), (8968, 153760), (9145, 150784), (9424, 146320), (9440, 146072), (9610, 143488), (9920, 139004), (11210, 123008), (11780, 117056), (12160, 113398), (14632, 94240), (15104, 91295), (15376, 89680), (17936, 76880), (18259, 75520), (18290, 75392), (18848, 73160), (18880, 73036), (19220, 71744), (19840, 69502), (22420, 61504), (23560, 58528), (24320, 56699), (29264, 47120), (30752, 44840), (34751, 39680), (35872, 38440), (36518, 37760), (36580, 37696)]