66656225

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{401}}^1$

素因数の和:581

約数の個数: 24

約数和(自身を含む): 84990840

約数和(自身を除く): 18334615

約数列:

[1, 5, 25, 61, 109, 305, 401, 545, 1525, 2005, 2725, 6649, 10025, 24461, 33245, 43709, 122305, 166225, 218545, 611525, 1092725, 2666249, 13331245, 66656225]

約数ペア:

[(1, 66656225), (5, 13331245), (25, 2666249), (61, 1092725), (109, 611525), (305, 218545), (401, 166225), (545, 122305), (1525, 43709), (2005, 33245), (2725, 24461), (6649, 10025)]