28903725

素因数分解:

$3^2\times 5^2\times {\mathrm{128461}}^1$

素因数の和:128477

約数の個数: 18

約数和(自身を含む): 51770186

約数和(自身を除く): 22866461

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 128461, 385383, 642305, 1156149, 1926915, 3211525, 5780745, 9634575, 28903725]

約数ペア:

[(1, 28903725), (3, 9634575), (5, 5780745), (9, 3211525), (15, 1926915), (25, 1156149), (45, 642305), (75, 385383), (225, 128461)]