82166020

素因数分解:

$2^2\times 5^1\times {\mathrm{971}}^1\times {\mathrm{4231}}^1$

素因数の和:5211

約数の個数: 24

約数和(自身を含む): 172767168

約数和(自身を除く): 90601148

約数列:

[1, 2, 4, 5, 10, 20, 971, 1942, 3884, 4231, 4855, 8462, 9710, 16924, 19420, 21155, 42310, 84620, 4108301, 8216602, 16433204, 20541505, 41083010, 82166020]

約数ペア:

[(1, 82166020), (2, 41083010), (4, 20541505), (5, 16433204), (10, 8216602), (20, 4108301), (971, 84620), (1942, 42310), (3884, 21155), (4231, 19420), (4855, 16924), (8462, 9710)]