19949825

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3931}}^1$

素因数の和:3977

約数の個数: 24

約数和(自身を含む): 29254080

約数和(自身を除く): 9304255

約数列:

[1, 5, 7, 25, 29, 35, 145, 175, 203, 725, 1015, 3931, 5075, 19655, 27517, 98275, 113999, 137585, 569995, 687925, 797993, 2849975, 3989965, 19949825]

約数ペア:

[(1, 19949825), (5, 3989965), (7, 2849975), (25, 797993), (29, 687925), (35, 569995), (145, 137585), (175, 113999), (203, 98275), (725, 27517), (1015, 19655), (3931, 5075)]