82820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:151

約数の個数: 24

約数和(自身を含む): 179928

約数和(自身を除く): 97108

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 101, 164, 202, 205, 404, 410, 505, 820, 1010, 2020, 4141, 8282, 16564, 20705, 41410, 82820]

約数ペア:

[(1, 82820), (2, 41410), (4, 20705), (5, 16564), (10, 8282), (20, 4141), (41, 2020), (82, 1010), (101, 820), (164, 505), (202, 410), (205, 404)]