859297960

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{43051}}^1$

素因数の和:43561

約数の個数: 32

約数和(自身を含む): 1937340000

約数和(自身を除く): 1078042040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1996, 2495, 3992, 4990, 9980, 19960, 43051, 86102, 172204, 215255, 344408, 430510, 861020, 1722040, 21482449, 42964898, 85929796, 107412245, 171859592, 214824490, 429648980, 859297960]

約数ペア:

[(1, 859297960), (2, 429648980), (4, 214824490), (5, 171859592), (8, 107412245), (10, 85929796), (20, 42964898), (40, 21482449), (499, 1722040), (998, 861020), (1996, 430510), (2495, 344408), (3992, 215255), (4990, 172204), (9980, 86102), (19960, 43051)]