20184725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2531}}^1$

素因数の和:2581

約数の個数: 24

約数和(自身を含む): 28257120

約数和(自身を除く): 8072395

約数列:

[1, 5, 11, 25, 29, 55, 145, 275, 319, 725, 1595, 2531, 7975, 12655, 27841, 63275, 73399, 139205, 366995, 696025, 807389, 1834975, 4036945, 20184725]

約数ペア:

[(1, 20184725), (5, 4036945), (11, 1834975), (25, 807389), (29, 696025), (55, 366995), (145, 139205), (275, 73399), (319, 63275), (725, 27841), (1595, 12655), (2531, 7975)]