51126640

素因数分解:

$2^4\times 5^1\times {\mathrm{639083}}^1$

素因数の和:639096

約数の個数: 20

約数和(自身を含む): 118869624

約数和(自身を除く): 67742984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 639083, 1278166, 2556332, 3195415, 5112664, 6390830, 10225328, 12781660, 25563320, 51126640]

約数ペア:

[(1, 51126640), (2, 25563320), (4, 12781660), (5, 10225328), (8, 6390830), (10, 5112664), (16, 3195415), (20, 2556332), (40, 1278166), (80, 639083)]