31880775

素因数分解:

$3^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{5987}}^1$

素因数の和:6071

約数の個数: 24

約数和(自身を含む): 53460864

約数和(自身を除く): 21580089

約数列:

[1, 3, 5, 15, 25, 71, 75, 213, 355, 1065, 1775, 5325, 5987, 17961, 29935, 89805, 149675, 425077, 449025, 1275231, 2125385, 6376155, 10626925, 31880775]

約数ペア:

[(1, 31880775), (3, 10626925), (5, 6376155), (15, 2125385), (25, 1275231), (71, 449025), (75, 425077), (213, 149675), (355, 89805), (1065, 29935), (1775, 17961), (5325, 5987)]