81248020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{580343}}^1$

素因数の和:580359

約数の個数: 24

約数和(自身を含む): 194995584

約数和(自身を除く): 113747564

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 580343, 1160686, 2321372, 2901715, 4062401, 5803430, 8124802, 11606860, 16249604, 20312005, 40624010, 81248020]

約数ペア:

[(1, 81248020), (2, 40624010), (4, 20312005), (5, 16249604), (7, 11606860), (10, 8124802), (14, 5803430), (20, 4062401), (28, 2901715), (35, 2321372), (70, 1160686), (140, 580343)]