42270290

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{499}}^1$

素因数の和:746

約数の個数: 32

約数和(自身を含む): 78408000

約数和(自身を除く): 36137710

約数列:

[1, 2, 5, 10, 43, 86, 197, 215, 394, 430, 499, 985, 998, 1970, 2495, 4990, 8471, 16942, 21457, 42355, 42914, 84710, 98303, 107285, 196606, 214570, 491515, 983030, 4227029, 8454058, 21135145, 42270290]

約数ペア:

[(1, 42270290), (2, 21135145), (5, 8454058), (10, 4227029), (43, 983030), (86, 491515), (197, 214570), (215, 196606), (394, 107285), (430, 98303), (499, 84710), (985, 42914), (998, 42355), (1970, 21457), (2495, 16942), (4990, 8471)]