71453680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1621}}^1$

素因数の和:1682

約数の個数: 80

約数和(自身を含む): 181015200

約数和(自身を除く): 109561520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 38, 40, 58, 76, 80, 95, 116, 145, 152, 190, 232, 290, 304, 380, 464, 551, 580, 760, 1102, 1160, 1520, 1621, 2204, 2320, 2755, 3242, 4408, 5510, 6484, 8105, 8816, 11020, 12968, 16210, 22040, 25936, 30799, 32420, 44080, 47009, 61598, 64840, 94018, 123196, 129680, 153995, 188036, 235045, 246392, 307990, 376072, 470090, 492784, 615980, 752144, 893171, 940180, 1231960, 1786342, 1880360, 2463920, 3572684, 3760720, 4465855, 7145368, 8931710, 14290736, 17863420, 35726840, 71453680]

約数ペア:

[(1, 71453680), (2, 35726840), (4, 17863420), (5, 14290736), (8, 8931710), (10, 7145368), (16, 4465855), (19, 3760720), (20, 3572684), (29, 2463920), (38, 1880360), (40, 1786342), (58, 1231960), (76, 940180), (80, 893171), (95, 752144), (116, 615980), (145, 492784), (152, 470090), (190, 376072), (232, 307990), (290, 246392), (304, 235045), (380, 188036), (464, 153995), (551, 129680), (580, 123196), (760, 94018), (1102, 64840), (1160, 61598), (1520, 47009), (1621, 44080), (2204, 32420), (2320, 30799), (2755, 25936), (3242, 22040), (4408, 16210), (5510, 12968), (6484, 11020), (8105, 8816)]