645656

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:80

約数の個数: 48

約数和(自身を含む): 1436400

約数和(自身を除く): 790744

約数列:

[1, 2, 4, 8, 11, 22, 23, 29, 44, 46, 58, 88, 92, 116, 121, 184, 232, 242, 253, 319, 484, 506, 638, 667, 968, 1012, 1276, 1334, 2024, 2552, 2668, 2783, 3509, 5336, 5566, 7018, 7337, 11132, 14036, 14674, 22264, 28072, 29348, 58696, 80707, 161414, 322828, 645656]

約数ペア:

[(1, 645656), (2, 322828), (4, 161414), (8, 80707), (11, 58696), (22, 29348), (23, 28072), (29, 22264), (44, 14674), (46, 14036), (58, 11132), (88, 7337), (92, 7018), (116, 5566), (121, 5336), (184, 3509), (232, 2783), (242, 2668), (253, 2552), (319, 2024), (484, 1334), (506, 1276), (638, 1012), (667, 968)]