9960040

素因数分解:

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

素因数の和:1009

約数の個数: 24

約数和(自身を含む): 22455090

約数和(自身を除く): 12495050

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1996, 2495, 3992, 4990, 9980, 19960, 249001, 498002, 996004, 1245005, 1992008, 2490010, 4980020, 9960040]

約数ペア:

[(1, 9960040), (2, 4980020), (4, 2490010), (5, 1992008), (8, 1245005), (10, 996004), (20, 498002), (40, 249001), (499, 19960), (998, 9980), (1996, 4990), (2495, 3992)]