28465725

素因数分解:

$3^1\times 5^2\times {\mathrm{491}}^1\times {\mathrm{773}}^1$

素因数の和:1277

約数の個数: 24

約数和(自身を含む): 47220192

約数和(自身を除く): 18754467

約数列:

[1, 3, 5, 15, 25, 75, 491, 773, 1473, 2319, 2455, 3865, 7365, 11595, 12275, 19325, 36825, 57975, 379543, 1138629, 1897715, 5693145, 9488575, 28465725]

約数ペア:

[(1, 28465725), (3, 9488575), (5, 5693145), (15, 1897715), (25, 1138629), (75, 379543), (491, 57975), (773, 36825), (1473, 19325), (2319, 12275), (2455, 11595), (3865, 7365)]