19995375

素因数分解:

$3^1\times 5^3\times {\mathrm{71}}^1\times {\mathrm{751}}^1$

素因数の和:840

約数の個数: 32

約数和(自身を含む): 33785856

約数和(自身を除く): 13790481

約数列:

[1, 3, 5, 15, 25, 71, 75, 125, 213, 355, 375, 751, 1065, 1775, 2253, 3755, 5325, 8875, 11265, 18775, 26625, 53321, 56325, 93875, 159963, 266605, 281625, 799815, 1333025, 3999075, 6665125, 19995375]

約数ペア:

[(1, 19995375), (3, 6665125), (5, 3999075), (15, 1333025), (25, 799815), (71, 281625), (75, 266605), (125, 159963), (213, 93875), (355, 56325), (375, 53321), (751, 26625), (1065, 18775), (1775, 11265), (2253, 8875), (3755, 5325)]