20104150

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{3323}}^1$

素因数の和:3357

約数の個数: 36

約数和(自身を含む): 41114556

約数和(自身を除く): 21010406

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 242, 275, 550, 605, 1210, 3025, 3323, 6050, 6646, 16615, 33230, 36553, 73106, 83075, 166150, 182765, 365530, 402083, 804166, 913825, 1827650, 2010415, 4020830, 10052075, 20104150]

約数ペア:

[(1, 20104150), (2, 10052075), (5, 4020830), (10, 2010415), (11, 1827650), (22, 913825), (25, 804166), (50, 402083), (55, 365530), (110, 182765), (121, 166150), (242, 83075), (275, 73106), (550, 36553), (605, 33230), (1210, 16615), (3025, 6646), (3323, 6050)]