289350375

素因数分解:

$3^1\times 5^3\times {\mathrm{521}}^1\times {\mathrm{1481}}^1$

素因数の和:2020

約数の個数: 32

約数和(自身を含む): 482728896

約数和(自身を除く): 193378521

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 521, 1481, 1563, 2605, 4443, 7405, 7815, 13025, 22215, 37025, 39075, 65125, 111075, 185125, 195375, 555375, 771601, 2314803, 3858005, 11574015, 19290025, 57870075, 96450125, 289350375]

約数ペア:

[(1, 289350375), (3, 96450125), (5, 57870075), (15, 19290025), (25, 11574015), (75, 3858005), (125, 2314803), (375, 771601), (521, 555375), (1481, 195375), (1563, 185125), (2605, 111075), (4443, 65125), (7405, 39075), (7815, 37025), (13025, 22215)]