640023170

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3368543}}^1$

素因数の和:3368569

約数の個数: 16

約数和(自身を含む): 1212675840

約数和(自身を除く): 572652670

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 3368543, 6737086, 16842715, 33685430, 64002317, 128004634, 320011585, 640023170]

約数ペア:

[(1, 640023170), (2, 320011585), (5, 128004634), (10, 64002317), (19, 33685430), (38, 16842715), (95, 6737086), (190, 3368543)]