256688978

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{13693}}^1$

素因数の和:13818

約数の個数: 32

約数和(自身を含む): 478523136

約数和(自身を除く): 221834158

約数列:

[1, 2, 7, 13, 14, 26, 91, 103, 182, 206, 721, 1339, 1442, 2678, 9373, 13693, 18746, 27386, 95851, 178009, 191702, 356018, 1246063, 1410379, 2492126, 2820758, 9872653, 18334927, 19745306, 36669854, 128344489, 256688978]

約数ペア:

[(1, 256688978), (2, 128344489), (7, 36669854), (13, 19745306), (14, 18334927), (26, 9872653), (91, 2820758), (103, 2492126), (182, 1410379), (206, 1246063), (721, 356018), (1339, 191702), (1442, 178009), (2678, 95851), (9373, 27386), (13693, 18746)]