90717680

素因数分解:

$2^4\times 5^1\times {\mathrm{1133971}}^1$

素因数の和:1133984

約数の個数: 20

約数和(自身を含む): 210918792

約数和(自身を除く): 120201112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1133971, 2267942, 4535884, 5669855, 9071768, 11339710, 18143536, 22679420, 45358840, 90717680]

約数ペア:

[(1, 90717680), (2, 45358840), (4, 22679420), (5, 18143536), (8, 11339710), (10, 9071768), (16, 5669855), (20, 4535884), (40, 2267942), (80, 1133971)]