490699240

素因数分解:

$2^3\times 5^1\times {\mathrm{2239}}^1\times {\mathrm{5479}}^1$

素因数の和:7729

約数の個数: 32

約数和(自身を含む): 1104768000

約数和(自身を除く): 614068760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2239, 4478, 5479, 8956, 10958, 11195, 17912, 21916, 22390, 27395, 43832, 44780, 54790, 89560, 109580, 219160, 12267481, 24534962, 49069924, 61337405, 98139848, 122674810, 245349620, 490699240]

約数ペア:

[(1, 490699240), (2, 245349620), (4, 122674810), (5, 98139848), (8, 61337405), (10, 49069924), (20, 24534962), (40, 12267481), (2239, 219160), (4478, 109580), (5479, 89560), (8956, 54790), (10958, 44780), (11195, 43832), (17912, 27395), (21916, 22390)]