256307905

素因数分解:

$5^1\times 7^1\times {\mathrm{1123}}^1\times {\mathrm{6521}}^1$

素因数の和:7656

約数の個数: 16

約数和(自身を含む): 351874944

約数和(自身を除く): 95567039

約数列:

[1, 5, 7, 35, 1123, 5615, 6521, 7861, 32605, 39305, 45647, 228235, 7323083, 36615415, 51261581, 256307905]

約数ペア:

[(1, 256307905), (5, 51261581), (7, 36615415), (35, 7323083), (1123, 228235), (5615, 45647), (6521, 39305), (7861, 32605)]