81897480

素因数分解:

$2^3\times 3^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:210

約数の個数: 320

約数和(自身を含む): 330359040

約数和(自身を除く): 248461560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 23, 24, 27, 28, 30, 35, 36, 40, 42, 45, 46, 54, 56, 60, 63, 69, 70, 72, 81, 84, 90, 92, 105, 108, 115, 120, 126, 135, 138, 140, 157, 161, 162, 168, 180, 184, 189, 207, 210, 216, 230, 252, 270, 276, 280, 314, 315, 322, 324, 345, 360, 378, 405, 414, 420, 460, 471, 483, 504, 540, 552, 567, 621, 628, 630, 644, 648, 690, 756, 785, 805, 810, 828, 840, 920, 942, 945, 966, 1035, 1080, 1099, 1134, 1242, 1256, 1260, 1288, 1380, 1413, 1449, 1512, 1570, 1610, 1620, 1656, 1863, 1884, 1890, 1932, 2070, 2198, 2268, 2355, 2415, 2484, 2520, 2760, 2826, 2835, 2898, 3105, 3140, 3220, 3240, 3297, 3611, 3726, 3768, 3780, 3864, 4140, 4239, 4347, 4396, 4536, 4710, 4830, 4968, 5495, 5652, 5670, 5796, 6210, 6280, 6440, 6594, 7065, 7222, 7245, 7452, 7560, 8280, 8478, 8694, 8792, 9315, 9420, 9660, 9891, 10833, 10990, 11304, 11340, 11592, 12420, 12717, 13041, 13188, 14130, 14444, 14490, 14904, 16485, 16956, 17388, 18055, 18630, 18840, 19320, 19782, 21195, 21666, 21735, 21980, 22680, 24840, 25277, 25434, 26082, 26376, 28260, 28888, 28980, 29673, 32499, 32970, 33912, 34776, 36110, 37260, 39564, 42390, 43332, 43470, 43960, 49455, 50554, 50868, 52164, 54165, 56520, 57960, 59346, 63585, 64998, 65205, 65940, 72220, 74520, 75831, 79128, 84780, 86664, 86940, 89019, 97497, 98910, 101108, 101736, 104328, 108330, 118692, 126385, 127170, 129996, 130410, 131880, 144440, 148365, 151662, 162495, 169560, 173880, 178038, 194994, 197820, 202216, 216660, 227493, 237384, 252770, 254340, 259992, 260820, 292491, 296730, 303324, 324990, 356076, 379155, 389988, 395640, 433320, 445095, 454986, 487485, 505540, 508680, 521640, 584982, 593460, 606648, 649980, 682479, 712152, 758310, 779976, 890190, 909972, 974970, 1011080, 1137465, 1169964, 1186920, 1299960, 1364958, 1462455, 1516620, 1780380, 1819944, 1949940, 2047437, 2274930, 2339928, 2729916, 2924910, 3033240, 3412395, 3560760, 3899880, 4094874, 4549860, 5459832, 5849820, 6824790, 8189748, 9099720, 10237185, 11699640, 13649580, 16379496, 20474370, 27299160, 40948740, 81897480]

約数ペア:

[(1, 81897480), (2, 40948740), (3, 27299160), (4, 20474370), (5, 16379496), (6, 13649580), (7, 11699640), (8, 10237185), (9, 9099720), (10, 8189748), (12, 6824790), (14, 5849820), (15, 5459832), (18, 4549860), (20, 4094874), (21, 3899880), (23, 3560760), (24, 3412395), (27, 3033240), (28, 2924910), (30, 2729916), (35, 2339928), (36, 2274930), (40, 2047437), (42, 1949940), (45, 1819944), (46, 1780380), (54, 1516620), (56, 1462455), (60, 1364958), (63, 1299960), (69, 1186920), (70, 1169964), (72, 1137465), (81, 1011080), (84, 974970), (90, 909972), (92, 890190), (105, 779976), (108, 758310), (115, 712152), (120, 682479), (126, 649980), (135, 606648), (138, 593460), (140, 584982), (157, 521640), (161, 508680), (162, 505540), (168, 487485), (180, 454986), (184, 445095), (189, 433320), (207, 395640), (210, 389988), (216, 379155), (230, 356076), (252, 324990), (270, 303324), (276, 296730), (280, 292491), (314, 260820), (315, 259992), (322, 254340), (324, 252770), (345, 237384), (360, 227493), (378, 216660), (405, 202216), (414, 197820), (420, 194994), (460, 178038), (471, 173880), (483, 169560), (504, 162495), (540, 151662), (552, 148365), (567, 144440), (621, 131880), (628, 130410), (630, 129996), (644, 127170), (648, 126385), (690, 118692), (756, 108330), (785, 104328), (805, 101736), (810, 101108), (828, 98910), (840, 97497), (920, 89019), (942, 86940), (945, 86664), (966, 84780), (1035, 79128), (1080, 75831), (1099, 74520), (1134, 72220), (1242, 65940), (1256, 65205), (1260, 64998), (1288, 63585), (1380, 59346), (1413, 57960), (1449, 56520), (1512, 54165), (1570, 52164), (1610, 50868), (1620, 50554), (1656, 49455), (1863, 43960), (1884, 43470), (1890, 43332), (1932, 42390), (2070, 39564), (2198, 37260), (2268, 36110), (2355, 34776), (2415, 33912), (2484, 32970), (2520, 32499), (2760, 29673), (2826, 28980), (2835, 28888), (2898, 28260), (3105, 26376), (3140, 26082), (3220, 25434), (3240, 25277), (3297, 24840), (3611, 22680), (3726, 21980), (3768, 21735), (3780, 21666), (3864, 21195), (4140, 19782), (4239, 19320), (4347, 18840), (4396, 18630), (4536, 18055), (4710, 17388), (4830, 16956), (4968, 16485), (5495, 14904), (5652, 14490), (5670, 14444), (5796, 14130), (6210, 13188), (6280, 13041), (6440, 12717), (6594, 12420), (7065, 11592), (7222, 11340), (7245, 11304), (7452, 10990), (7560, 10833), (8280, 9891), (8478, 9660), (8694, 9420), (8792, 9315)]