78997120

素因数分解:

$2^7\times 5^1\times {\mathrm{123433}}^1$

素因数の和:123452

約数の個数: 32

約数和(自身を含む): 188854020

約数和(自身を除く): 109856900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 123433, 246866, 493732, 617165, 987464, 1234330, 1974928, 2468660, 3949856, 4937320, 7899712, 9874640, 15799424, 19749280, 39498560, 78997120]

約数ペア:

[(1, 78997120), (2, 39498560), (4, 19749280), (5, 15799424), (8, 9874640), (10, 7899712), (16, 4937320), (20, 3949856), (32, 2468660), (40, 1974928), (64, 1234330), (80, 987464), (128, 617165), (160, 493732), (320, 246866), (640, 123433)]