20180121025

素因数分解:

$5^2\times {\mathrm{109}}^1\times {\mathrm{1987}}^1\times {\mathrm{3727}}^1$

素因数の和:5833

約数の個数: 24

約数和(自身を含む): 25272410240

約数和(自身を除く): 5092289215

約数列:

[1, 5, 25, 109, 545, 1987, 2725, 3727, 9935, 18635, 49675, 93175, 216583, 406243, 1082915, 2031215, 5414575, 7405549, 10156075, 37027745, 185138725, 807204841, 4036024205, 20180121025]

約数ペア:

[(1, 20180121025), (5, 4036024205), (25, 807204841), (109, 185138725), (545, 37027745), (1987, 10156075), (2725, 7405549), (3727, 5414575), (9935, 2031215), (18635, 1082915), (49675, 406243), (93175, 216583)]