28520925

素因数分解:

$3^1\times 5^2\times {\mathrm{163}}^1\times {\mathrm{2333}}^1$

素因数の和:2509

約数の個数: 24

約数和(自身を含む): 47464224

約数和(自身を除く): 18943299

約数列:

[1, 3, 5, 15, 25, 75, 163, 489, 815, 2333, 2445, 4075, 6999, 11665, 12225, 34995, 58325, 174975, 380279, 1140837, 1901395, 5704185, 9506975, 28520925]

約数ペア:

[(1, 28520925), (3, 9506975), (5, 5704185), (15, 1901395), (25, 1140837), (75, 380279), (163, 174975), (489, 58325), (815, 34995), (2333, 12225), (2445, 11665), (4075, 6999)]