31980675

素因数分解:

$3^1\times 5^2\times {\mathrm{653}}^2$

素因数の和:1319

約数の個数: 18

約数和(自身を含む): 52955812

約数和(自身を除く): 20975137

約数列:

[1, 3, 5, 15, 25, 75, 653, 1959, 3265, 9795, 16325, 48975, 426409, 1279227, 2132045, 6396135, 10660225, 31980675]

約数ペア:

[(1, 31980675), (3, 10660225), (5, 6396135), (15, 2132045), (25, 1279227), (75, 426409), (653, 48975), (1959, 16325), (3265, 9795)]