20884720

素因数分解:

$2^4\times 5^1\times {\mathrm{261059}}^1$

素因数の和:261072

約数の個数: 20

約数和(自身を含む): 48557160

約数和(自身を除く): 27672440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 261059, 522118, 1044236, 1305295, 2088472, 2610590, 4176944, 5221180, 10442360, 20884720]

約数ペア:

[(1, 20884720), (2, 10442360), (4, 5221180), (5, 4176944), (8, 2610590), (10, 2088472), (16, 1305295), (20, 1044236), (40, 522118), (80, 261059)]