20110420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{91411}}^1$

素因数の和:91431

約数の個数: 24

約数和(自身を含む): 46071648

約数和(自身を除く): 25961228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 91411, 182822, 365644, 457055, 914110, 1005521, 1828220, 2011042, 4022084, 5027605, 10055210, 20110420]

約数ペア:

[(1, 20110420), (2, 10055210), (4, 5027605), (5, 4022084), (10, 2011042), (11, 1828220), (20, 1005521), (22, 914110), (44, 457055), (55, 365644), (110, 182822), (220, 91411)]