56997005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{51581}}^1$

素因数の和:51616

約数の個数: 16

約数和(自身を含む): 77991984

約数和(自身を除く): 20994979

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 51581, 257905, 670553, 876877, 3352765, 4384385, 11399401, 56997005]

約数ペア:

[(1, 56997005), (5, 11399401), (13, 4384385), (17, 3352765), (65, 876877), (85, 670553), (221, 257905), (1105, 51581)]