20804525

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{6257}}^1$

素因数の和:6293

約数の個数: 24

約数和(自身を含む): 31039680

約数和(自身を除く): 10235155

約数列:

[1, 5, 7, 19, 25, 35, 95, 133, 175, 475, 665, 3325, 6257, 31285, 43799, 118883, 156425, 218995, 594415, 832181, 1094975, 2972075, 4160905, 20804525]

約数ペア:

[(1, 20804525), (5, 4160905), (7, 2972075), (19, 1094975), (25, 832181), (35, 594415), (95, 218995), (133, 156425), (175, 118883), (475, 43799), (665, 31285), (3325, 6257)]