20957570

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1511}}^1$

素因数の和:1610

約数の個数: 32

約数和(自身を含む): 40279680

約数和(自身を除く): 19322110

約数列:

[1, 2, 5, 10, 19, 38, 73, 95, 146, 190, 365, 730, 1387, 1511, 2774, 3022, 6935, 7555, 13870, 15110, 28709, 57418, 110303, 143545, 220606, 287090, 551515, 1103030, 2095757, 4191514, 10478785, 20957570]

約数ペア:

[(1, 20957570), (2, 10478785), (5, 4191514), (10, 2095757), (19, 1103030), (38, 551515), (73, 287090), (95, 220606), (146, 143545), (190, 110303), (365, 57418), (730, 28709), (1387, 15110), (1511, 13870), (2774, 7555), (3022, 6935)]