520725

素因数分解:

$3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:197

約数の個数: 24

約数和(自身を含む): 883872

約数和(自身を除く): 363147

約数列:

[1, 3, 5, 15, 25, 53, 75, 131, 159, 265, 393, 655, 795, 1325, 1965, 3275, 3975, 6943, 9825, 20829, 34715, 104145, 173575, 520725]

約数ペア:

[(1, 520725), (3, 173575), (5, 104145), (15, 34715), (25, 20829), (53, 9825), (75, 6943), (131, 3975), (159, 3275), (265, 1965), (393, 1325), (655, 795)]