409631420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1861961}}^1$

素因数の和:1861981

約数の個数: 24

約数和(自身を含む): 938428848

約数和(自身を除く): 528797428

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1861961, 3723922, 7447844, 9309805, 18619610, 20481571, 37239220, 40963142, 81926284, 102407855, 204815710, 409631420]

約数ペア:

[(1, 409631420), (2, 204815710), (4, 102407855), (5, 81926284), (10, 40963142), (11, 37239220), (20, 20481571), (22, 18619610), (44, 9309805), (55, 7447844), (110, 3723922), (220, 1861961)]