647397928

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{74861}}^1$

素因数の和:74937

約数の個数: 32

約数和(自身を含む): 1293615360

約数和(自身を除く): 646217432

約数列:

[1, 2, 4, 8, 23, 46, 47, 92, 94, 184, 188, 376, 1081, 2162, 4324, 8648, 74861, 149722, 299444, 598888, 1721803, 3443606, 3518467, 6887212, 7036934, 13774424, 14073868, 28147736, 80924741, 161849482, 323698964, 647397928]

約数ペア:

[(1, 647397928), (2, 323698964), (4, 161849482), (8, 80924741), (23, 28147736), (46, 14073868), (47, 13774424), (92, 7036934), (94, 6887212), (184, 3518467), (188, 3443606), (376, 1721803), (1081, 598888), (2162, 299444), (4324, 149722), (8648, 74861)]