215550860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1539649}}^1$

素因数の和:1539665

約数の個数: 24

約数和(自身を含む): 517322400

約数和(自身を除く): 301771540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1539649, 3079298, 6158596, 7698245, 10777543, 15396490, 21555086, 30792980, 43110172, 53887715, 107775430, 215550860]

約数ペア:

[(1, 215550860), (2, 107775430), (4, 53887715), (5, 43110172), (7, 30792980), (10, 21555086), (14, 15396490), (20, 10777543), (28, 7698245), (35, 6158596), (70, 3079298), (140, 1539649)]