20786060

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7477}}^1$

素因数の和:7625

約数の個数: 24

約数和(自身を含む): 43970640

約数和(自身を除く): 23184580

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 7477, 14954, 29908, 37385, 74770, 149540, 1039303, 2078606, 4157212, 5196515, 10393030, 20786060]

約数ペア:

[(1, 20786060), (2, 10393030), (4, 5196515), (5, 4157212), (10, 2078606), (20, 1039303), (139, 149540), (278, 74770), (556, 37385), (695, 29908), (1390, 14954), (2780, 7477)]