20375410

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{9749}}^1$

素因数の和:9786

約数の個数: 32

約数和(自身を含む): 42120000

約数和(自身を除く): 21744590

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 9749, 19498, 48745, 97490, 107239, 185231, 214478, 370462, 536195, 926155, 1072390, 1852310, 2037541, 4075082, 10187705, 20375410]

約数ペア:

[(1, 20375410), (2, 10187705), (5, 4075082), (10, 2037541), (11, 1852310), (19, 1072390), (22, 926155), (38, 536195), (55, 370462), (95, 214478), (110, 185231), (190, 107239), (209, 97490), (418, 48745), (1045, 19498), (2090, 9749)]