40407080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{144311}}^1$

素因数の和:144329

約数の個数: 32

約数和(自身を含む): 103904640

約数和(自身を除く): 63497560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 144311, 288622, 577244, 721555, 1010177, 1154488, 1443110, 2020354, 2886220, 4040708, 5050885, 5772440, 8081416, 10101770, 20203540, 40407080]

約数ペア:

[(1, 40407080), (2, 20203540), (4, 10101770), (5, 8081416), (7, 5772440), (8, 5050885), (10, 4040708), (14, 2886220), (20, 2020354), (28, 1443110), (35, 1154488), (40, 1010177), (56, 721555), (70, 577244), (140, 288622), (280, 144311)]