81211340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{580081}}^1$

素因数の和:580097

約数の個数: 24

約数和(自身を含む): 194907552

約数和(自身を除く): 113696212

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 580081, 1160162, 2320324, 2900405, 4060567, 5800810, 8121134, 11601620, 16242268, 20302835, 40605670, 81211340]

約数ペア:

[(1, 81211340), (2, 40605670), (4, 20302835), (5, 16242268), (7, 11601620), (10, 8121134), (14, 5800810), (20, 4060567), (28, 2900405), (35, 2320324), (70, 1160162), (140, 580081)]