82195280

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{499}}^1$

素因数の和:612

約数の個数: 80

約数和(自身を含む): 200880000

約数和(自身を除く): 118684720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 71, 80, 116, 142, 145, 232, 284, 290, 355, 464, 499, 568, 580, 710, 998, 1136, 1160, 1420, 1996, 2059, 2320, 2495, 2840, 3992, 4118, 4990, 5680, 7984, 8236, 9980, 10295, 14471, 16472, 19960, 20590, 28942, 32944, 35429, 39920, 41180, 57884, 70858, 72355, 82360, 115768, 141716, 144710, 164720, 177145, 231536, 283432, 289420, 354290, 566864, 578840, 708580, 1027441, 1157680, 1417160, 2054882, 2834320, 4109764, 5137205, 8219528, 10274410, 16439056, 20548820, 41097640, 82195280]

約数ペア:

[(1, 82195280), (2, 41097640), (4, 20548820), (5, 16439056), (8, 10274410), (10, 8219528), (16, 5137205), (20, 4109764), (29, 2834320), (40, 2054882), (58, 1417160), (71, 1157680), (80, 1027441), (116, 708580), (142, 578840), (145, 566864), (232, 354290), (284, 289420), (290, 283432), (355, 231536), (464, 177145), (499, 164720), (568, 144710), (580, 141716), (710, 115768), (998, 82360), (1136, 72355), (1160, 70858), (1420, 57884), (1996, 41180), (2059, 39920), (2320, 35429), (2495, 32944), (2840, 28942), (3992, 20590), (4118, 19960), (4990, 16472), (5680, 14471), (7984, 10295), (8236, 9980)]