79137920

素因数分解:

$2^7\times 5^1\times {\mathrm{123653}}^1$

素因数の和:123672

約数の個数: 32

約数和(自身を含む): 189190620

約数和(自身を除く): 110052700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 123653, 247306, 494612, 618265, 989224, 1236530, 1978448, 2473060, 3956896, 4946120, 7913792, 9892240, 15827584, 19784480, 39568960, 79137920]

約数ペア:

[(1, 79137920), (2, 39568960), (4, 19784480), (5, 15827584), (8, 9892240), (10, 7913792), (16, 4946120), (20, 3956896), (32, 2473060), (40, 1978448), (64, 1236530), (80, 989224), (128, 618265), (160, 494612), (320, 247306), (640, 123653)]