18825640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16229}}^1$

素因数の和:16269

約数の個数: 32

約数和(自身を含む): 43821000

約数和(自身を除く): 24995360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 16229, 32458, 64916, 81145, 129832, 162290, 324580, 470641, 649160, 941282, 1882564, 2353205, 3765128, 4706410, 9412820, 18825640]

約数ペア:

[(1, 18825640), (2, 9412820), (4, 4706410), (5, 3765128), (8, 2353205), (10, 1882564), (20, 941282), (29, 649160), (40, 470641), (58, 324580), (116, 162290), (145, 129832), (232, 81145), (290, 64916), (580, 32458), (1160, 16229)]