201212245

素因数分解:

$5^1\times {\mathrm{13}}^4\times {\mathrm{1409}}^1$

素因数の和:1466

約数の個数: 20

約数和(自身を含む): 261760860

約数和(自身を除く): 60548615

約数列:

[1, 5, 13, 65, 169, 845, 1409, 2197, 7045, 10985, 18317, 28561, 91585, 142805, 238121, 1190605, 3095573, 15477865, 40242449, 201212245]

約数ペア:

[(1, 201212245), (5, 40242449), (13, 15477865), (65, 3095573), (169, 1190605), (845, 238121), (1409, 142805), (2197, 91585), (7045, 28561), (10985, 18317)]