68520130

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{139837}}^1$

素因数の和:139858

約数の個数: 24

約数和(自身を含む): 143473788

約数和(自身を除く): 74953658

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 139837, 279674, 699185, 978859, 1398370, 1957718, 4894295, 6852013, 9788590, 13704026, 34260065, 68520130]

約数ペア:

[(1, 68520130), (2, 34260065), (5, 13704026), (7, 9788590), (10, 6852013), (14, 4894295), (35, 1957718), (49, 1398370), (70, 978859), (98, 699185), (245, 279674), (490, 139837)]