78274280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{279551}}^1$

素因数の和:279569

約数の個数: 32

約数和(自身を含む): 201277440

約数和(自身を除く): 123003160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 279551, 559102, 1118204, 1397755, 1956857, 2236408, 2795510, 3913714, 5591020, 7827428, 9784285, 11182040, 15654856, 19568570, 39137140, 78274280]

約数ペア:

[(1, 78274280), (2, 39137140), (4, 19568570), (5, 15654856), (7, 11182040), (8, 9784285), (10, 7827428), (14, 5591020), (20, 3913714), (28, 2795510), (35, 2236408), (40, 1956857), (56, 1397755), (70, 1118204), (140, 559102), (280, 279551)]