7893940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 17341632

約数和(自身を除く): 9447692

約数列:

[1, 2, 4, 5, 10, 20, 43, 67, 86, 134, 137, 172, 215, 268, 274, 335, 430, 548, 670, 685, 860, 1340, 1370, 2740, 2881, 5762, 5891, 9179, 11524, 11782, 14405, 18358, 23564, 28810, 29455, 36716, 45895, 57620, 58910, 91790, 117820, 183580, 394697, 789394, 1578788, 1973485, 3946970, 7893940]

約数ペア:

[(1, 7893940), (2, 3946970), (4, 1973485), (5, 1578788), (10, 789394), (20, 394697), (43, 183580), (67, 117820), (86, 91790), (134, 58910), (137, 57620), (172, 45895), (215, 36716), (268, 29455), (274, 28810), (335, 23564), (430, 18358), (548, 14405), (670, 11782), (685, 11524), (860, 9179), (1340, 5891), (1370, 5762), (2740, 2881)]