20309290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{769}}^1$

素因数の和:934

約数の個数: 32

約数和(自身を含む): 38808000

約数和(自身を除く): 18498710

約数列:

[1, 2, 5, 10, 19, 38, 95, 139, 190, 278, 695, 769, 1390, 1538, 2641, 3845, 5282, 7690, 13205, 14611, 26410, 29222, 73055, 106891, 146110, 213782, 534455, 1068910, 2030929, 4061858, 10154645, 20309290]

約数ペア:

[(1, 20309290), (2, 10154645), (5, 4061858), (10, 2030929), (19, 1068910), (38, 534455), (95, 213782), (139, 146110), (190, 106891), (278, 73055), (695, 29222), (769, 26410), (1390, 14611), (1538, 13205), (2641, 7690), (3845, 5282)]