28709225

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{757}}^1$

素因数の和:845

約数の個数: 24

約数和(自身を含む): 37502808

約数和(自身を除く): 8793583

約数列:

[1, 5, 25, 37, 41, 185, 205, 757, 925, 1025, 1517, 3785, 7585, 18925, 28009, 31037, 37925, 140045, 155185, 700225, 775925, 1148369, 5741845, 28709225]

約数ペア:

[(1, 28709225), (5, 5741845), (25, 1148369), (37, 775925), (41, 700225), (185, 155185), (205, 140045), (757, 37925), (925, 31037), (1025, 28009), (1517, 18925), (3785, 7585)]