20164730

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:398

約数の個数: 32

約数和(自身を含む): 37195200

約数和(自身を除く): 17030470

約数列:

[1, 2, 5, 10, 89, 139, 163, 178, 278, 326, 445, 695, 815, 890, 1390, 1630, 12371, 14507, 22657, 24742, 29014, 45314, 61855, 72535, 113285, 123710, 145070, 226570, 2016473, 4032946, 10082365, 20164730]

約数ペア:

[(1, 20164730), (2, 10082365), (5, 4032946), (10, 2016473), (89, 226570), (139, 145070), (163, 123710), (178, 113285), (278, 72535), (326, 61855), (445, 45314), (695, 29014), (815, 24742), (890, 22657), (1390, 14507), (1630, 12371)]