20825870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{12323}}^1$

素因数の和:12356

約数の個数: 24

約数和(自身を含む): 40595256

約数和(自身を除く): 19769386

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 12323, 24646, 61615, 123230, 160199, 320398, 800995, 1601990, 2082587, 4165174, 10412935, 20825870]

約数ペア:

[(1, 20825870), (2, 10412935), (5, 4165174), (10, 2082587), (13, 1601990), (26, 800995), (65, 320398), (130, 160199), (169, 123230), (338, 61615), (845, 24646), (1690, 12323)]