205653620

素因数分解:

$2^2\times 5^1\times {\mathrm{2111}}^1\times {\mathrm{4871}}^1$

素因数の和:6991

約数の個数: 24

約数和(自身を含む): 432165888

約数和(自身を除く): 226512268

約数列:

[1, 2, 4, 5, 10, 20, 2111, 4222, 4871, 8444, 9742, 10555, 19484, 21110, 24355, 42220, 48710, 97420, 10282681, 20565362, 41130724, 51413405, 102826810, 205653620]

約数ペア:

[(1, 205653620), (2, 102826810), (4, 51413405), (5, 41130724), (10, 20565362), (20, 10282681), (2111, 97420), (4222, 48710), (4871, 42220), (8444, 24355), (9742, 21110), (10555, 19484)]