205368440

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{10289}}^1$

素因数の和:10799

約数の個数: 32

約数和(自身を含む): 463050000

約数和(自身を除く): 257681560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1996, 2495, 3992, 4990, 9980, 10289, 19960, 20578, 41156, 51445, 82312, 102890, 205780, 411560, 5134211, 10268422, 20536844, 25671055, 41073688, 51342110, 102684220, 205368440]

約数ペア:

[(1, 205368440), (2, 102684220), (4, 51342110), (5, 41073688), (8, 25671055), (10, 20536844), (20, 10268422), (40, 5134211), (499, 411560), (998, 205780), (1996, 102890), (2495, 82312), (3992, 51445), (4990, 41156), (9980, 20578), (10289, 19960)]