31891420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{144961}}^1$

素因数の和:144981

約数の個数: 24

約数和(自身を含む): 73060848

約数和(自身を除く): 41169428

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 144961, 289922, 579844, 724805, 1449610, 1594571, 2899220, 3189142, 6378284, 7972855, 15945710, 31891420]

約数ペア:

[(1, 31891420), (2, 15945710), (4, 7972855), (5, 6378284), (10, 3189142), (11, 2899220), (20, 1594571), (22, 1449610), (44, 724805), (55, 579844), (110, 289922), (220, 144961)]