19749280

素因数分解:

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

素因数の和:123448

約数の個数: 24

約数和(自身を含む): 46658052

約数和(自身を除く): 26908772

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 123433, 246866, 493732, 617165, 987464, 1234330, 1974928, 2468660, 3949856, 4937320, 9874640, 19749280]

約数ペア:

[(1, 19749280), (2, 9874640), (4, 4937320), (5, 3949856), (8, 2468660), (10, 1974928), (16, 1234330), (20, 987464), (32, 617165), (40, 493732), (80, 246866), (160, 123433)]