64686680

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{22777}}^1$

素因数の和:22859

約数の個数: 32

約数和(自身を含む): 147601440

約数和(自身を除く): 82914760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 22777, 45554, 91108, 113885, 182216, 227770, 455540, 911080, 1617167, 3234334, 6468668, 8085835, 12937336, 16171670, 32343340, 64686680]

約数ペア:

[(1, 64686680), (2, 32343340), (4, 16171670), (5, 12937336), (8, 8085835), (10, 6468668), (20, 3234334), (40, 1617167), (71, 911080), (142, 455540), (284, 227770), (355, 182216), (568, 113885), (710, 91108), (1420, 45554), (2840, 22777)]