18865220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{85751}}^1$

素因数の和:85771

約数の個数: 24

約数和(自身を含む): 43219008

約数和(自身を除く): 24353788

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 85751, 171502, 343004, 428755, 857510, 943261, 1715020, 1886522, 3773044, 4716305, 9432610, 18865220]

約数ペア:

[(1, 18865220), (2, 9432610), (4, 4716305), (5, 3773044), (10, 1886522), (11, 1715020), (20, 943261), (22, 857510), (44, 428755), (55, 343004), (110, 171502), (220, 85751)]