20006455

素因数分解:

$5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{2207}}^1$

素因数の和:2263

約数の個数: 24

約数和(自身を含む): 28695168

約数和(自身を除く): 8688713

約数列:

[1, 5, 7, 35, 37, 49, 185, 245, 259, 1295, 1813, 2207, 9065, 11035, 15449, 77245, 81659, 108143, 408295, 540715, 571613, 2858065, 4001291, 20006455]

約数ペア:

[(1, 20006455), (5, 4001291), (7, 2858065), (35, 571613), (37, 540715), (49, 408295), (185, 108143), (245, 81659), (259, 77245), (1295, 15449), (1813, 11035), (2207, 9065)]