12980435

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{691}}^1$

素因数の和:743

約数の個数: 24

約数和(自身を含む): 17845296

約数和(自身を除く): 4864861

約数列:

[1, 5, 13, 17, 65, 85, 221, 289, 691, 1105, 1445, 3455, 3757, 8983, 11747, 18785, 44915, 58735, 152711, 199699, 763555, 998495, 2596087, 12980435]

約数ペア:

[(1, 12980435), (5, 2596087), (13, 998495), (17, 763555), (65, 199699), (85, 152711), (221, 58735), (289, 44915), (691, 18785), (1105, 11747), (1445, 8983), (3455, 3757)]