20728522075

素因数分解:

$5^2\times {\mathrm{401}}^1\times {\mathrm{1217}}^1\times {\mathrm{1699}}^1$

素因数の和:3327

約数の個数: 24

約数和(自身を含む): 25803817200

約数和(自身を除く): 5075295125

約数列:

[1, 5, 25, 401, 1217, 1699, 2005, 6085, 8495, 10025, 30425, 42475, 488017, 681299, 2067683, 2440085, 3406495, 10338415, 12200425, 17032475, 51692075, 829140883, 4145704415, 20728522075]

約数ペア:

[(1, 20728522075), (5, 4145704415), (25, 829140883), (401, 51692075), (1217, 17032475), (1699, 12200425), (2005, 10338415), (6085, 3406495), (8495, 2440085), (10025, 2067683), (30425, 681299), (42475, 488017)]