39899420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181361}}^1$

素因数の和:181381

約数の個数: 24

約数和(自身を含む): 91406448

約数和(自身を除く): 51507028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 181361, 362722, 725444, 906805, 1813610, 1994971, 3627220, 3989942, 7979884, 9974855, 19949710, 39899420]

約数ペア:

[(1, 39899420), (2, 19949710), (4, 9974855), (5, 7979884), (10, 3989942), (11, 3627220), (20, 1994971), (22, 1813610), (44, 906805), (55, 725444), (110, 362722), (220, 181361)]