81943820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{585313}}^1$

素因数の和:585329

約数の個数: 24

約数和(自身を含む): 196665504

約数和(自身を除く): 114721684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 585313, 1170626, 2341252, 2926565, 4097191, 5853130, 8194382, 11706260, 16388764, 20485955, 40971910, 81943820]

約数ペア:

[(1, 81943820), (2, 40971910), (4, 20485955), (5, 16388764), (7, 11706260), (10, 8194382), (14, 5853130), (20, 4097191), (28, 2926565), (35, 2341252), (70, 1170626), (140, 585313)]