221446220

素因数分解:

$2^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{22189}}^1$

素因数の和:22697

約数の個数: 24

約数和(自身を含む): 465990000

約数和(自身を除く): 244543780

約数列:

[1, 2, 4, 5, 10, 20, 499, 998, 1996, 2495, 4990, 9980, 22189, 44378, 88756, 110945, 221890, 443780, 11072311, 22144622, 44289244, 55361555, 110723110, 221446220]

約数ペア:

[(1, 221446220), (2, 110723110), (4, 55361555), (5, 44289244), (10, 22144622), (20, 11072311), (499, 443780), (998, 221890), (1996, 110945), (2495, 88756), (4990, 44378), (9980, 22189)]