17924080

素因数分解:

$2^4\times 5^1\times {\mathrm{449}}^1\times {\mathrm{499}}^1$

素因数の和:961

約数の個数: 40

約数和(自身を含む): 41850000

約数和(自身を除く): 23925920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 449, 499, 898, 998, 1796, 1996, 2245, 2495, 3592, 3992, 4490, 4990, 7184, 7984, 8980, 9980, 17960, 19960, 35920, 39920, 224051, 448102, 896204, 1120255, 1792408, 2240510, 3584816, 4481020, 8962040, 17924080]

約数ペア:

[(1, 17924080), (2, 8962040), (4, 4481020), (5, 3584816), (8, 2240510), (10, 1792408), (16, 1120255), (20, 896204), (40, 448102), (80, 224051), (449, 39920), (499, 35920), (898, 19960), (998, 17960), (1796, 9980), (1996, 8980), (2245, 7984), (2495, 7184), (3592, 4990), (3992, 4490)]