51860720

素因数分解:

$2^4\times 5^1\times {\mathrm{648259}}^1$

素因数の和:648272

約数の個数: 20

約数和(自身を含む): 120576360

約数和(自身を除く): 68715640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 648259, 1296518, 2593036, 3241295, 5186072, 6482590, 10372144, 12965180, 25930360, 51860720]

約数ペア:

[(1, 51860720), (2, 25930360), (4, 12965180), (5, 10372144), (8, 6482590), (10, 5186072), (16, 3241295), (20, 2593036), (40, 1296518), (80, 648259)]