40989905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{829}}^1$

素因数の和:905

約数の個数: 32

約数和(自身を含む): 57369600

約数和(自身を除く): 16379695

約数列:

[1, 5, 11, 29, 31, 55, 145, 155, 319, 341, 829, 899, 1595, 1705, 4145, 4495, 9119, 9889, 24041, 25699, 45595, 49445, 120205, 128495, 264451, 282689, 745271, 1322255, 1413445, 3726355, 8197981, 40989905]

約数ペア:

[(1, 40989905), (5, 8197981), (11, 3726355), (29, 1413445), (31, 1322255), (55, 745271), (145, 282689), (155, 264451), (319, 128495), (341, 120205), (829, 49445), (899, 45595), (1595, 25699), (1705, 24041), (4145, 9889), (4495, 9119)]