20047825

素因数分解:

$5^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1051}}^1$

素因数の和:1177

約数の個数: 24

約数和(自身を含む): 28698560

約数和(自身を除く): 8650735

約数列:

[1, 5, 7, 25, 35, 109, 175, 545, 763, 1051, 2725, 3815, 5255, 7357, 19075, 26275, 36785, 114559, 183925, 572795, 801913, 2863975, 4009565, 20047825]

約数ペア:

[(1, 20047825), (5, 4009565), (7, 2863975), (25, 801913), (35, 572795), (109, 183925), (175, 114559), (545, 36785), (763, 26275), (1051, 19075), (2725, 7357), (3815, 5255)]