28284460

素因数分解:

$2^2\times 5^1\times {\mathrm{557}}^1\times {\mathrm{2539}}^1$

素因数の和:3105

約数の個数: 24

約数和(自身を含む): 59527440

約数和(自身を除く): 31242980

約数列:

[1, 2, 4, 5, 10, 20, 557, 1114, 2228, 2539, 2785, 5078, 5570, 10156, 11140, 12695, 25390, 50780, 1414223, 2828446, 5656892, 7071115, 14142230, 28284460]

約数ペア:

[(1, 28284460), (2, 14142230), (4, 7071115), (5, 5656892), (10, 2828446), (20, 1414223), (557, 50780), (1114, 25390), (2228, 12695), (2539, 11140), (2785, 10156), (5078, 5570)]