1213025

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{401}}^1$

素因数の和:433

約数の個数: 18

約数和(自身を含む): 1657446

約数和(自身を除く): 444421

約数列:

[1, 5, 11, 25, 55, 121, 275, 401, 605, 2005, 3025, 4411, 10025, 22055, 48521, 110275, 242605, 1213025]

約数ペア:

[(1, 1213025), (5, 242605), (11, 110275), (25, 48521), (55, 22055), (121, 10025), (275, 4411), (401, 3025), (605, 2005)]