40249990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{1531}}^1$

素因数の和:1788

約数の個数: 32

約数和(自身を含む): 79418880

約数和(自身を除く): 39168890

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 239, 478, 1195, 1531, 2390, 2629, 3062, 5258, 7655, 13145, 15310, 16841, 26290, 33682, 84205, 168410, 365909, 731818, 1829545, 3659090, 4024999, 8049998, 20124995, 40249990]

約数ペア:

[(1, 40249990), (2, 20124995), (5, 8049998), (10, 4024999), (11, 3659090), (22, 1829545), (55, 731818), (110, 365909), (239, 168410), (478, 84205), (1195, 33682), (1531, 26290), (2390, 16841), (2629, 15310), (3062, 13145), (5258, 7655)]