85990840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{165367}}^1$

素因数の和:165391

約数の個数: 32

約数和(自身を含む): 208363680

約数和(自身を除く): 122372840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 165367, 330734, 661468, 826835, 1322936, 1653670, 2149771, 3307340, 4299542, 6614680, 8599084, 10748855, 17198168, 21497710, 42995420, 85990840]

約数ペア:

[(1, 85990840), (2, 42995420), (4, 21497710), (5, 17198168), (8, 10748855), (10, 8599084), (13, 6614680), (20, 4299542), (26, 3307340), (40, 2149771), (52, 1653670), (65, 1322936), (104, 826835), (130, 661468), (260, 330734), (520, 165367)]