201771080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{720611}}^1$

素因数の和:720629

約数の個数: 32

約数和(自身を含む): 518840640

約数和(自身を除く): 317069560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 720611, 1441222, 2882444, 3603055, 5044277, 5764888, 7206110, 10088554, 14412220, 20177108, 25221385, 28824440, 40354216, 50442770, 100885540, 201771080]

約数ペア:

[(1, 201771080), (2, 100885540), (4, 50442770), (5, 40354216), (7, 28824440), (8, 25221385), (10, 20177108), (14, 14412220), (20, 10088554), (28, 7206110), (35, 5764888), (40, 5044277), (56, 3603055), (70, 2882444), (140, 1441222), (280, 720611)]