89685820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{640613}}^1$

素因数の和:640629

約数の個数: 24

約数和(自身を含む): 215246304

約数和(自身を除く): 125560484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 640613, 1281226, 2562452, 3203065, 4484291, 6406130, 8968582, 12812260, 17937164, 22421455, 44842910, 89685820]

約数ペア:

[(1, 89685820), (2, 44842910), (4, 22421455), (5, 17937164), (7, 12812260), (10, 8968582), (14, 6406130), (20, 4484291), (28, 3203065), (35, 2562452), (70, 1281226), (140, 640613)]