12218425

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{887}}^1$

素因数の和:945

約数の個数: 24

約数和(自身を含む): 16516800

約数和(自身を除く): 4298375

約数列:

[1, 5, 19, 25, 29, 95, 145, 475, 551, 725, 887, 2755, 4435, 13775, 16853, 22175, 25723, 84265, 128615, 421325, 488737, 643075, 2443685, 12218425]

約数ペア:

[(1, 12218425), (5, 2443685), (19, 643075), (25, 488737), (29, 421325), (95, 128615), (145, 84265), (475, 25723), (551, 22175), (725, 16853), (887, 13775), (2755, 4435)]