20138680

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6373}}^1$

素因数の和:6463

約数の個数: 32

約数和(自身を含む): 45892800

約数和(自身を除く): 25754120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 6373, 12746, 25492, 31865, 50984, 63730, 127460, 254920, 503467, 1006934, 2013868, 2517335, 4027736, 5034670, 10069340, 20138680]

約数ペア:

[(1, 20138680), (2, 10069340), (4, 5034670), (5, 4027736), (8, 2517335), (10, 2013868), (20, 1006934), (40, 503467), (79, 254920), (158, 127460), (316, 63730), (395, 50984), (632, 31865), (790, 25492), (1580, 12746), (3160, 6373)]