28724260

素因数分解:

$2^2\times 5^1\times {\mathrm{563}}^1\times {\mathrm{2551}}^1$

素因数の和:3123

約数の個数: 24

約数和(自身を含む): 60451776

約数和(自身を除く): 31727516

約数列:

[1, 2, 4, 5, 10, 20, 563, 1126, 2252, 2551, 2815, 5102, 5630, 10204, 11260, 12755, 25510, 51020, 1436213, 2872426, 5744852, 7181065, 14362130, 28724260]

約数ペア:

[(1, 28724260), (2, 14362130), (4, 7181065), (5, 5744852), (10, 2872426), (20, 1436213), (563, 51020), (1126, 25510), (2252, 12755), (2551, 11260), (2815, 10204), (5102, 5630)]