28710225

素因数分解:

$3^2\times 5^2\times {\mathrm{127601}}^1$

素因数の和:127617

約数の個数: 18

約数和(自身を含む): 51423606

約数和(自身を除く): 22713381

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 127601, 382803, 638005, 1148409, 1914015, 3190025, 5742045, 9570075, 28710225]

約数ペア:

[(1, 28710225), (3, 9570075), (5, 5742045), (9, 3190025), (15, 1914015), (25, 1148409), (45, 638005), (75, 382803), (225, 127601)]