27812440

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{6379}}^1$

素因数の和:6499

約数の個数: 32

約数和(自身を含む): 63162000

約数和(自身を除く): 35349560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 6379, 12758, 25516, 31895, 51032, 63790, 127580, 255160, 695311, 1390622, 2781244, 3476555, 5562488, 6953110, 13906220, 27812440]

約数ペア:

[(1, 27812440), (2, 13906220), (4, 6953110), (5, 5562488), (8, 3476555), (10, 2781244), (20, 1390622), (40, 695311), (109, 255160), (218, 127580), (436, 63790), (545, 51032), (872, 31895), (1090, 25516), (2180, 12758), (4360, 6379)]