127712440

素因数分解:

$2^3\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{2879}}^1$

素因数の和:3999

約数の個数: 32

約数和(自身を含む): 287712000

約数和(自身を除く): 159999560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1109, 2218, 2879, 4436, 5545, 5758, 8872, 11090, 11516, 14395, 22180, 23032, 28790, 44360, 57580, 115160, 3192811, 6385622, 12771244, 15964055, 25542488, 31928110, 63856220, 127712440]

約数ペア:

[(1, 127712440), (2, 63856220), (4, 31928110), (5, 25542488), (8, 15964055), (10, 12771244), (20, 6385622), (40, 3192811), (1109, 115160), (2218, 57580), (2879, 44360), (4436, 28790), (5545, 23032), (5758, 22180), (8872, 14395), (11090, 11516)]