40458920

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{2027}}^1$

素因数の和:2537

約数の個数: 32

約数和(自身を含む): 91260000

約数和(自身を除く): 50801080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1996, 2027, 2495, 3992, 4054, 4990, 8108, 9980, 10135, 16216, 19960, 20270, 40540, 81080, 1011473, 2022946, 4045892, 5057365, 8091784, 10114730, 20229460, 40458920]

約数ペア:

[(1, 40458920), (2, 20229460), (4, 10114730), (5, 8091784), (8, 5057365), (10, 4045892), (20, 2022946), (40, 1011473), (499, 81080), (998, 40540), (1996, 20270), (2027, 19960), (2495, 16216), (3992, 10135), (4054, 9980), (4990, 8108)]