81778212

素因数分解:

$2^2\times 3^2\times {\mathrm{647}}^1\times {\mathrm{3511}}^1$

素因数の和:4168

約数の個数: 36

約数和(自身を含む): 207095616

約数和(自身を除く): 125317404

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 647, 1294, 1941, 2588, 3511, 3882, 5823, 7022, 7764, 10533, 11646, 14044, 21066, 23292, 31599, 42132, 63198, 126396, 2271617, 4543234, 6814851, 9086468, 13629702, 20444553, 27259404, 40889106, 81778212]

約数ペア:

[(1, 81778212), (2, 40889106), (3, 27259404), (4, 20444553), (6, 13629702), (9, 9086468), (12, 6814851), (18, 4543234), (36, 2271617), (647, 126396), (1294, 63198), (1941, 42132), (2588, 31599), (3511, 23292), (3882, 21066), (5823, 14044), (7022, 11646), (7764, 10533)]