808420

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{487}}^1$

素因数の和:579

約数の個数: 24

約数和(自身を含む): 1721664

約数和(自身を除く): 913244

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 487, 830, 974, 1660, 1948, 2435, 4870, 9740, 40421, 80842, 161684, 202105, 404210, 808420]

約数ペア:

[(1, 808420), (2, 404210), (4, 202105), (5, 161684), (10, 80842), (20, 40421), (83, 9740), (166, 4870), (332, 2435), (415, 1948), (487, 1660), (830, 974)]