80769680

素因数分解:

$2^4\times 5^1\times {\mathrm{1009621}}^1$

素因数の和:1009634

約数の個数: 20

約数和(自身を含む): 187789692

約数和(自身を除く): 107020012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1009621, 2019242, 4038484, 5048105, 8076968, 10096210, 16153936, 20192420, 40384840, 80769680]

約数ペア:

[(1, 80769680), (2, 40384840), (4, 20192420), (5, 16153936), (8, 10096210), (10, 8076968), (16, 5048105), (20, 4038484), (40, 2019242), (80, 1009621)]