256990630

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1976851}}^1$

素因数の和:1976871

約数の個数: 16

約数和(自身を含む): 498166704

約数和(自身を除く): 241176074

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1976851, 3953702, 9884255, 19768510, 25699063, 51398126, 128495315, 256990630]

約数ペア:

[(1, 256990630), (2, 128495315), (5, 51398126), (10, 25699063), (13, 19768510), (26, 9884255), (65, 3953702), (130, 1976851)]