80880400

素因数分解:

$2^4\times 5^2\times {\mathrm{202201}}^1$

素因数の和:202219

約数の個数: 30

約数和(自身を含む): 194316122

約数和(自身を除く): 113435722

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 202201, 404402, 808804, 1011005, 1617608, 2022010, 3235216, 4044020, 5055025, 8088040, 10110050, 16176080, 20220100, 40440200, 80880400]

約数ペア:

[(1, 80880400), (2, 40440200), (4, 20220100), (5, 16176080), (8, 10110050), (10, 8088040), (16, 5055025), (20, 4044020), (25, 3235216), (40, 2022010), (50, 1617608), (80, 1011005), (100, 808804), (200, 404402), (400, 202201)]