201664120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{720229}}^1$

素因数の和:720247

約数の個数: 32

約数和(自身を含む): 518565600

約数和(自身を除く): 316901480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 720229, 1440458, 2880916, 3601145, 5041603, 5761832, 7202290, 10083206, 14404580, 20166412, 25208015, 28809160, 40332824, 50416030, 100832060, 201664120]

約数ペア:

[(1, 201664120), (2, 100832060), (4, 50416030), (5, 40332824), (7, 28809160), (8, 25208015), (10, 20166412), (14, 14404580), (20, 10083206), (28, 7202290), (35, 5761832), (40, 5041603), (56, 3601145), (70, 2880916), (140, 1440458), (280, 720229)]