80558560

素因数分解:

$2^5\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1009}}^1$

素因数の和:1523

約数の個数: 48

約数和(自身を含む): 190890000

約数和(自身を除く): 110331440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 499, 998, 1009, 1996, 2018, 2495, 3992, 4036, 4990, 5045, 7984, 8072, 9980, 10090, 15968, 16144, 19960, 20180, 32288, 39920, 40360, 79840, 80720, 161440, 503491, 1006982, 2013964, 2517455, 4027928, 5034910, 8055856, 10069820, 16111712, 20139640, 40279280, 80558560]

約数ペア:

[(1, 80558560), (2, 40279280), (4, 20139640), (5, 16111712), (8, 10069820), (10, 8055856), (16, 5034910), (20, 4027928), (32, 2517455), (40, 2013964), (80, 1006982), (160, 503491), (499, 161440), (998, 80720), (1009, 79840), (1996, 40360), (2018, 39920), (2495, 32288), (3992, 20180), (4036, 19960), (4990, 16144), (5045, 15968), (7984, 10090), (8072, 9980)]