12888640

素因数分解:

$2^6\times 5^1\times {\mathrm{40277}}^1$

素因数の和:40294

約数の個数: 28

約数和(自身を含む): 30691836

約数和(自身を除く): 17803196

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 40277, 80554, 161108, 201385, 322216, 402770, 644432, 805540, 1288864, 1611080, 2577728, 3222160, 6444320, 12888640]

約数ペア:

[(1, 12888640), (2, 6444320), (4, 3222160), (5, 2577728), (8, 1611080), (10, 1288864), (16, 805540), (20, 644432), (32, 402770), (40, 322216), (64, 201385), (80, 161108), (160, 80554), (320, 40277)]