20630390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{9871}}^1$

素因数の和:9908

約数の個数: 32

約数和(自身を含む): 42647040

約数和(自身を除く): 22016650

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 9871, 19742, 49355, 98710, 108581, 187549, 217162, 375098, 542905, 937745, 1085810, 1875490, 2063039, 4126078, 10315195, 20630390]

約数ペア:

[(1, 20630390), (2, 10315195), (5, 4126078), (10, 2063039), (11, 1875490), (19, 1085810), (22, 937745), (38, 542905), (55, 375098), (95, 217162), (110, 187549), (190, 108581), (209, 98710), (418, 49355), (1045, 19742), (2090, 9871)]