2561278

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{331}}^1$

素因数の和:459

約数の個数: 16

約数和(自身を含む): 3980016

約数和(自身を除く): 1418738

約数列:

[1, 2, 53, 73, 106, 146, 331, 662, 3869, 7738, 17543, 24163, 35086, 48326, 1280639, 2561278]

約数ペア:

[(1, 2561278), (2, 1280639), (53, 48326), (73, 35086), (106, 24163), (146, 17543), (331, 7738), (662, 3869)]