78588020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{561343}}^1$

素因数の和:561359

約数の個数: 24

約数和(自身を含む): 188611584

約数和(自身を除く): 110023564

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 561343, 1122686, 2245372, 2806715, 3929401, 5613430, 7858802, 11226860, 15717604, 19647005, 39294010, 78588020]

約数ペア:

[(1, 78588020), (2, 39294010), (4, 19647005), (5, 15717604), (7, 11226860), (10, 7858802), (14, 5613430), (20, 3929401), (28, 2806715), (35, 2245372), (70, 1122686), (140, 561343)]