208161745

素因数分解:

$5^1\times {\mathrm{11}}^3\times {\mathrm{31}}^1\times {\mathrm{1009}}^1$

素因数の和:1078

約数の個数: 32

約数和(自身を含む): 283898880

約数和(自身を除く): 75737135

約数列:

[1, 5, 11, 31, 55, 121, 155, 341, 605, 1009, 1331, 1705, 3751, 5045, 6655, 11099, 18755, 31279, 41261, 55495, 122089, 156395, 206305, 344069, 610445, 1342979, 1720345, 3784759, 6714895, 18923795, 41632349, 208161745]

約数ペア:

[(1, 208161745), (5, 41632349), (11, 18923795), (31, 6714895), (55, 3784759), (121, 1720345), (155, 1342979), (341, 610445), (605, 344069), (1009, 206305), (1331, 156395), (1705, 122089), (3751, 55495), (5045, 41261), (6655, 31279), (11099, 18755)]