81687172

素因数分解:

$2^2\times 7^1\times {\mathrm{1279}}^1\times {\mathrm{2281}}^1$

素因数の和:3571

約数の個数: 24

約数和(自身を含む): 163573760

約数和(自身を除く): 81886588

約数列:

[1, 2, 4, 7, 14, 28, 1279, 2281, 2558, 4562, 5116, 8953, 9124, 15967, 17906, 31934, 35812, 63868, 2917399, 5834798, 11669596, 20421793, 40843586, 81687172]

約数ペア:

[(1, 81687172), (2, 40843586), (4, 20421793), (7, 11669596), (14, 5834798), (28, 2917399), (1279, 63868), (2281, 35812), (2558, 31934), (4562, 17906), (5116, 15967), (8953, 9124)]