678676545

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{247241}}^1$

素因数の和:247313

約数の個数: 24

約数和(自身を含む): 1195662312

約数和(自身を除く): 516985767

約数列:

[1, 3, 5, 9, 15, 45, 61, 183, 305, 549, 915, 2745, 247241, 741723, 1236205, 2225169, 3708615, 11125845, 15081701, 45245103, 75408505, 135735309, 226225515, 678676545]

約数ペア:

[(1, 678676545), (3, 226225515), (5, 135735309), (9, 75408505), (15, 45245103), (45, 15081701), (61, 11125845), (183, 3708615), (305, 2225169), (549, 1236205), (915, 741723), (2745, 247241)]