51957680

素因数分解:

$2^4\times 5^1\times {\mathrm{649471}}^1$

素因数の和:649484

約数の個数: 20

約数和(自身を含む): 120801792

約数和(自身を除く): 68844112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 649471, 1298942, 2597884, 3247355, 5195768, 6494710, 10391536, 12989420, 25978840, 51957680]

約数ペア:

[(1, 51957680), (2, 25978840), (4, 12989420), (5, 10391536), (8, 6494710), (10, 5195768), (16, 3247355), (20, 2597884), (40, 1298942), (80, 649471)]