40104080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:304

約数の個数: 80

約数和(自身を含む): 97803264

約数和(自身を除く): 57699184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 103, 124, 155, 157, 206, 248, 310, 314, 412, 496, 515, 620, 628, 785, 824, 1030, 1240, 1256, 1570, 1648, 2060, 2480, 2512, 3140, 3193, 4120, 4867, 6280, 6386, 8240, 9734, 12560, 12772, 15965, 16171, 19468, 24335, 25544, 31930, 32342, 38936, 48670, 51088, 63860, 64684, 77872, 80855, 97340, 127720, 129368, 161710, 194680, 255440, 258736, 323420, 389360, 501301, 646840, 1002602, 1293680, 2005204, 2506505, 4010408, 5013010, 8020816, 10026020, 20052040, 40104080]

約数ペア:

[(1, 40104080), (2, 20052040), (4, 10026020), (5, 8020816), (8, 5013010), (10, 4010408), (16, 2506505), (20, 2005204), (31, 1293680), (40, 1002602), (62, 646840), (80, 501301), (103, 389360), (124, 323420), (155, 258736), (157, 255440), (206, 194680), (248, 161710), (310, 129368), (314, 127720), (412, 97340), (496, 80855), (515, 77872), (620, 64684), (628, 63860), (785, 51088), (824, 48670), (1030, 38936), (1240, 32342), (1256, 31930), (1570, 25544), (1648, 24335), (2060, 19468), (2480, 16171), (2512, 15965), (3140, 12772), (3193, 12560), (4120, 9734), (4867, 8240), (6280, 6386)]