40279280

素因数分解:

$2^4\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1009}}^1$

素因数の和:1521

約数の個数: 40

約数和(自身を含む): 93930000

約数和(自身を除く): 53650720

約数列:

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

約数ペア:

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