66656405

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{163}}^1\times {\mathrm{283}}^1$

素因数の和:485

約数の個数: 24

約数和(自身を含む): 85792992

約数和(自身を除く): 19136587

約数列:

[1, 5, 17, 85, 163, 283, 289, 815, 1415, 1445, 2771, 4811, 13855, 24055, 46129, 47107, 81787, 230645, 235535, 408935, 784193, 3920965, 13331281, 66656405]

約数ペア:

[(1, 66656405), (5, 13331281), (17, 3920965), (85, 784193), (163, 408935), (283, 235535), (289, 230645), (815, 81787), (1415, 47107), (1445, 46129), (2771, 24055), (4811, 13855)]