20380228

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{4099}}^1$

素因数の和:4227

約数の個数: 24

約数和(自身を含む): 39261600

約数和(自身を除く): 18881372

約数列:

[1, 2, 4, 11, 22, 44, 113, 226, 452, 1243, 2486, 4099, 4972, 8198, 16396, 45089, 90178, 180356, 463187, 926374, 1852748, 5095057, 10190114, 20380228]

約数ペア:

[(1, 20380228), (2, 10190114), (4, 5095057), (11, 1852748), (22, 926374), (44, 463187), (113, 180356), (226, 90178), (452, 45089), (1243, 16396), (2486, 8198), (4099, 4972)]