20442290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{9781}}^1$

素因数の和:9818

約数の個数: 32

約数和(自身を含む): 42258240

約数和(自身を除く): 21815950

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 9781, 19562, 48905, 97810, 107591, 185839, 215182, 371678, 537955, 929195, 1075910, 1858390, 2044229, 4088458, 10221145, 20442290]

約数ペア:

[(1, 20442290), (2, 10221145), (5, 4088458), (10, 2044229), (11, 1858390), (19, 1075910), (22, 929195), (38, 537955), (55, 371678), (95, 215182), (110, 185839), (190, 107591), (209, 97810), (418, 48905), (1045, 19562), (2090, 9781)]