81267220

素因数分解:

$2^2\times 5^1\times {\mathrm{601}}^1\times {\mathrm{6761}}^1$

素因数の和:7371

約数の個数: 24

約数和(自身を含む): 170970408

約数和(自身を除く): 89703188

約数列:

[1, 2, 4, 5, 10, 20, 601, 1202, 2404, 3005, 6010, 6761, 12020, 13522, 27044, 33805, 67610, 135220, 4063361, 8126722, 16253444, 20316805, 40633610, 81267220]

約数ペア:

[(1, 81267220), (2, 40633610), (4, 20316805), (5, 16253444), (10, 8126722), (20, 4063361), (601, 135220), (1202, 67610), (2404, 33805), (3005, 27044), (6010, 13522), (6761, 12020)]