39805520

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2749}}^1$

素因数の和:2943

約数の個数: 40

約数和(自身を含む): 93093000

約数和(自身を除く): 53287480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1448, 1810, 2749, 2896, 3620, 5498, 7240, 10996, 13745, 14480, 21992, 27490, 43984, 54980, 109960, 219920, 497569, 995138, 1990276, 2487845, 3980552, 4975690, 7961104, 9951380, 19902760, 39805520]

約数ペア:

[(1, 39805520), (2, 19902760), (4, 9951380), (5, 7961104), (8, 4975690), (10, 3980552), (16, 2487845), (20, 1990276), (40, 995138), (80, 497569), (181, 219920), (362, 109960), (724, 54980), (905, 43984), (1448, 27490), (1810, 21992), (2749, 14480), (2896, 13745), (3620, 10996), (5498, 7240)]