65556980

素因数分解:

$2^2\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{2539}}^1$

素因数の和:3839

約数の個数: 24

約数和(自身を含む): 137830560

約数和(自身を除く): 72273580

約数列:

[1, 2, 4, 5, 10, 20, 1291, 2539, 2582, 5078, 5164, 6455, 10156, 12695, 12910, 25390, 25820, 50780, 3277849, 6555698, 13111396, 16389245, 32778490, 65556980]

約数ペア:

[(1, 65556980), (2, 32778490), (4, 16389245), (5, 13111396), (10, 6555698), (20, 3277849), (1291, 50780), (2539, 25820), (2582, 25390), (5078, 12910), (5164, 12695), (6455, 10156)]