20002480

素因数分解:

$2^4\times 5^1\times {\mathrm{250031}}^1$

素因数の和:250044

約数の個数: 20

約数和(自身を含む): 46505952

約数和(自身を除く): 26503472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 250031, 500062, 1000124, 1250155, 2000248, 2500310, 4000496, 5000620, 10001240, 20002480]

約数ペア:

[(1, 20002480), (2, 10001240), (4, 5000620), (5, 4000496), (8, 2500310), (10, 2000248), (16, 1250155), (20, 1000124), (40, 500062), (80, 250031)]