21816082480

素因数分解:

$2^4\times 5^1\times {\mathrm{272701031}}^1$

素因数の和:272701044

約数の個数: 20

約数和(自身を含む): 50722391952

約数和(自身を除く): 28906309472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 272701031, 545402062, 1090804124, 1363505155, 2181608248, 2727010310, 4363216496, 5454020620, 10908041240, 21816082480]

約数ペア:

[(1, 21816082480), (2, 10908041240), (4, 5454020620), (5, 4363216496), (8, 2727010310), (10, 2181608248), (16, 1363505155), (20, 1090804124), (40, 545402062), (80, 272701031)]