71771240

素因数分解:

$2^3\times 5^1\times {\mathrm{563}}^1\times {\mathrm{3187}}^1$

素因数の和:3761

約数の個数: 32

約数和(自身を含む): 161822880

約数和(自身を除く): 90051640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 563, 1126, 2252, 2815, 3187, 4504, 5630, 6374, 11260, 12748, 15935, 22520, 25496, 31870, 63740, 127480, 1794281, 3588562, 7177124, 8971405, 14354248, 17942810, 35885620, 71771240]

約数ペア:

[(1, 71771240), (2, 35885620), (4, 17942810), (5, 14354248), (8, 8971405), (10, 7177124), (20, 3588562), (40, 1794281), (563, 127480), (1126, 63740), (2252, 31870), (2815, 25496), (3187, 22520), (4504, 15935), (5630, 12748), (6374, 11260)]