90285680

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{10957}}^1$

素因数の和:11073

約数の個数: 40

約数和(自身を含む): 211971552

約数和(自身を除く): 121685872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 10957, 21914, 43828, 54785, 87656, 109570, 175312, 219140, 438280, 876560, 1128571, 2257142, 4514284, 5642855, 9028568, 11285710, 18057136, 22571420, 45142840, 90285680]

約数ペア:

[(1, 90285680), (2, 45142840), (4, 22571420), (5, 18057136), (8, 11285710), (10, 9028568), (16, 5642855), (20, 4514284), (40, 2257142), (80, 1128571), (103, 876560), (206, 438280), (412, 219140), (515, 175312), (824, 109570), (1030, 87656), (1648, 54785), (2060, 43828), (4120, 21914), (8240, 10957)]