54872780

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{25171}}^1$

素因数の和:25289

約数の個数: 24

約数和(自身を含む): 116294640

約数和(自身を除く): 61421860

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 25171, 50342, 100684, 125855, 251710, 503420, 2743639, 5487278, 10974556, 13718195, 27436390, 54872780]

約数ペア:

[(1, 54872780), (2, 27436390), (4, 13718195), (5, 10974556), (10, 5487278), (20, 2743639), (109, 503420), (218, 251710), (436, 125855), (545, 100684), (1090, 50342), (2180, 25171)]