20529980

素因数分解:

$2^2\times 5^1\times {\mathrm{367}}^1\times {\mathrm{2797}}^1$

素因数の和:3173

約数の個数: 24

約数和(自身を含む): 43245888

約数和(自身を除く): 22715908

約数列:

[1, 2, 4, 5, 10, 20, 367, 734, 1468, 1835, 2797, 3670, 5594, 7340, 11188, 13985, 27970, 55940, 1026499, 2052998, 4105996, 5132495, 10264990, 20529980]

約数ペア:

[(1, 20529980), (2, 10264990), (4, 5132495), (5, 4105996), (10, 2052998), (20, 1026499), (367, 55940), (734, 27970), (1468, 13985), (1835, 11188), (2797, 7340), (3670, 5594)]