81871920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8747}}^1$

素因数の和:8779

約数の個数: 120

約数和(自身を含む): 296137296

約数和(自身を除く): 214265376

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1560, 1872, 2340, 3120, 4680, 8747, 9360, 17494, 26241, 34988, 43735, 52482, 69976, 78723, 87470, 104964, 113711, 131205, 139952, 157446, 174940, 209928, 227422, 262410, 314892, 341133, 349880, 393615, 419856, 454844, 524820, 568555, 629784, 682266, 699760, 787230, 909688, 1023399, 1049640, 1137110, 1259568, 1364532, 1574460, 1705665, 1819376, 2046798, 2099280, 2274220, 2729064, 3148920, 3411330, 4093596, 4548440, 5116995, 5458128, 6297840, 6822660, 8187192, 9096880, 10233990, 13645320, 16374384, 20467980, 27290640, 40935960, 81871920]

約数ペア:

[(1, 81871920), (2, 40935960), (3, 27290640), (4, 20467980), (5, 16374384), (6, 13645320), (8, 10233990), (9, 9096880), (10, 8187192), (12, 6822660), (13, 6297840), (15, 5458128), (16, 5116995), (18, 4548440), (20, 4093596), (24, 3411330), (26, 3148920), (30, 2729064), (36, 2274220), (39, 2099280), (40, 2046798), (45, 1819376), (48, 1705665), (52, 1574460), (60, 1364532), (65, 1259568), (72, 1137110), (78, 1049640), (80, 1023399), (90, 909688), (104, 787230), (117, 699760), (120, 682266), (130, 629784), (144, 568555), (156, 524820), (180, 454844), (195, 419856), (208, 393615), (234, 349880), (240, 341133), (260, 314892), (312, 262410), (360, 227422), (390, 209928), (468, 174940), (520, 157446), (585, 139952), (624, 131205), (720, 113711), (780, 104964), (936, 87470), (1040, 78723), (1170, 69976), (1560, 52482), (1872, 43735), (2340, 34988), (3120, 26241), (4680, 17494), (8747, 9360)]