78840548

素因数分解:

$2^2\times {\mathrm{61}}^2\times {\mathrm{5297}}^1$

素因数の和:5423

約数の個数: 18

約数和(自身を含む): 140296338

約数和(自身を除く): 61455790

約数列:

[1, 2, 4, 61, 122, 244, 3721, 5297, 7442, 10594, 14884, 21188, 323117, 646234, 1292468, 19710137, 39420274, 78840548]

約数ペア:

[(1, 78840548), (2, 39420274), (4, 19710137), (61, 1292468), (122, 646234), (244, 323117), (3721, 21188), (5297, 14884), (7442, 10594)]