123456542

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{5051}}^1$

素因数の和:5176

約数の個数: 24

約数和(自身を含む): 205606296

約数和(自身を除く): 82149754

約数列:

[1, 2, 11, 22, 101, 121, 202, 242, 1111, 2222, 5051, 10102, 12221, 24442, 55561, 111122, 510151, 611171, 1020302, 1222342, 5611661, 11223322, 61728271, 123456542]

約数ペア:

[(1, 123456542), (2, 61728271), (11, 11223322), (22, 5611661), (101, 1222342), (121, 1020302), (202, 611171), (242, 510151), (1111, 111122), (2222, 55561), (5051, 24442), (10102, 12221)]