2120780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5581}}^1$

素因数の和:5609

約数の個数: 24

約数和(自身を含む): 4688880

約数和(自身を除く): 2568100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 5581, 11162, 22324, 27905, 55810, 106039, 111620, 212078, 424156, 530195, 1060390, 2120780]

約数ペア:

[(1, 2120780), (2, 1060390), (4, 530195), (5, 424156), (10, 212078), (19, 111620), (20, 106039), (38, 55810), (76, 27905), (95, 22324), (190, 11162), (380, 5581)]