81135676

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{2621}}^1$

素因数の和:2805

約数の個数: 24

約数和(自身を含む): 145363680

約数和(自身を除く): 64228004

約数列:

[1, 2, 4, 71, 109, 142, 218, 284, 436, 2621, 5242, 7739, 10484, 15478, 30956, 186091, 285689, 372182, 571378, 744364, 1142756, 20283919, 40567838, 81135676]

約数ペア:

[(1, 81135676), (2, 40567838), (4, 20283919), (71, 1142756), (109, 744364), (142, 571378), (218, 372182), (284, 285689), (436, 186091), (2621, 30956), (5242, 15478), (7739, 10484)]