20506580

素因数分解:

$2^2\times 5^1\times {\mathrm{577}}^1\times {\mathrm{1777}}^1$

素因数の和:2363

約数の個数: 24

約数和(自身を含む): 43162728

約数和(自身を除く): 22656148

約数列:

[1, 2, 4, 5, 10, 20, 577, 1154, 1777, 2308, 2885, 3554, 5770, 7108, 8885, 11540, 17770, 35540, 1025329, 2050658, 4101316, 5126645, 10253290, 20506580]

約数ペア:

[(1, 20506580), (2, 10253290), (4, 5126645), (5, 4101316), (10, 2050658), (20, 1025329), (577, 35540), (1154, 17770), (1777, 11540), (2308, 8885), (2885, 7108), (3554, 5770)]