87666440

素因数分解:

$2^3\times 5^1\times {\mathrm{1103}}^1\times {\mathrm{1987}}^1$

素因数の和:3101

約数の個数: 32

約数和(自身を含む): 197527680

約数和(自身を除く): 109861240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1103, 1987, 2206, 3974, 4412, 5515, 7948, 8824, 9935, 11030, 15896, 19870, 22060, 39740, 44120, 79480, 2191661, 4383322, 8766644, 10958305, 17533288, 21916610, 43833220, 87666440]

約数ペア:

[(1, 87666440), (2, 43833220), (4, 21916610), (5, 17533288), (8, 10958305), (10, 8766644), (20, 4383322), (40, 2191661), (1103, 79480), (1987, 44120), (2206, 39740), (3974, 22060), (4412, 19870), (5515, 15896), (7948, 11030), (8824, 9935)]