128862572

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{293}}^1\times {\mathrm{2557}}^1$

素因数の和:2897

約数の個数: 24

約数和(自身を含む): 231632016

約数和(自身を除く): 102769444

約数列:

[1, 2, 4, 43, 86, 172, 293, 586, 1172, 2557, 5114, 10228, 12599, 25198, 50396, 109951, 219902, 439804, 749201, 1498402, 2996804, 32215643, 64431286, 128862572]

約数ペア:

[(1, 128862572), (2, 64431286), (4, 32215643), (43, 2996804), (86, 1498402), (172, 749201), (293, 439804), (586, 219902), (1172, 109951), (2557, 50396), (5114, 25198), (10228, 12599)]