564080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{641}}^1$

素因数の和:665

約数の個数: 40

約数和(自身を含む): 1432944

約数和(自身を除く): 868864

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 641, 880, 1282, 2564, 3205, 5128, 6410, 7051, 10256, 12820, 14102, 25640, 28204, 35255, 51280, 56408, 70510, 112816, 141020, 282040, 564080]

約数ペア:

[(1, 564080), (2, 282040), (4, 141020), (5, 112816), (8, 70510), (10, 56408), (11, 51280), (16, 35255), (20, 28204), (22, 25640), (40, 14102), (44, 12820), (55, 10256), (80, 7051), (88, 6410), (110, 5128), (176, 3205), (220, 2564), (440, 1282), (641, 880)]