12228725

素因数分解:

$5^2\times {\mathrm{31}}^2\times {\mathrm{509}}^1$

素因数の和:581

約数の個数: 18

約数和(自身を含む): 15699330

約数和(自身を除く): 3470605

約数列:

[1, 5, 25, 31, 155, 509, 775, 961, 2545, 4805, 12725, 15779, 24025, 78895, 394475, 489149, 2445745, 12228725]

約数ペア:

[(1, 12228725), (5, 2445745), (25, 489149), (31, 394475), (155, 78895), (509, 24025), (775, 15779), (961, 12725), (2545, 4805)]