81749392

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{40231}}^1$

素因数の和:40366

約数の個数: 20

約数和(自身を含む): 159640576

約数和(自身を除く): 77891184

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 40231, 80462, 160924, 321848, 643696, 5109337, 10218674, 20437348, 40874696, 81749392]

約数ペア:

[(1, 81749392), (2, 40874696), (4, 20437348), (8, 10218674), (16, 5109337), (127, 643696), (254, 321848), (508, 160924), (1016, 80462), (2032, 40231)]