20408312

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{68947}}^1$

素因数の和:68990

約数の個数: 16

約数和(自身を含む): 39300360

約数和(自身を除く): 18892048

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 68947, 137894, 275788, 551576, 2551039, 5102078, 10204156, 20408312]

約数ペア:

[(1, 20408312), (2, 10204156), (4, 5102078), (8, 2551039), (37, 551576), (74, 275788), (148, 137894), (296, 68947)]