20391660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{113287}}^1$

素因数の和:113302

約数の個数: 36

約数和(自身を含む): 61855248

約数和(自身を除く): 41463588

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 113287, 226574, 339861, 453148, 566435, 679722, 1019583, 1132870, 1359444, 1699305, 2039166, 2265740, 3398610, 4078332, 5097915, 6797220, 10195830, 20391660]

約数ペア:

[(1, 20391660), (2, 10195830), (3, 6797220), (4, 5097915), (5, 4078332), (6, 3398610), (9, 2265740), (10, 2039166), (12, 1699305), (15, 1359444), (18, 1132870), (20, 1019583), (30, 679722), (36, 566435), (45, 453148), (60, 339861), (90, 226574), (180, 113287)]