291260225

素因数分解:

$5^2\times {\mathrm{809}}^1\times {\mathrm{14401}}^1$

素因数の和:15220

約数の個数: 12

約数和(自身を含む): 361634220

約数和(自身を除く): 70373995

約数列:

[1, 5, 25, 809, 4045, 14401, 20225, 72005, 360025, 11650409, 58252045, 291260225]

約数ペア:

[(1, 291260225), (5, 58252045), (25, 11650409), (809, 360025), (4045, 72005), (14401, 20225)]