2640340

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1361}}^1$

素因数の和:1467

約数の個数: 24

約数和(自身を含む): 5605992

約数和(自身を除く): 2965652

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1361, 1940, 2722, 5444, 6805, 13610, 27220, 132017, 264034, 528068, 660085, 1320170, 2640340]

約数ペア:

[(1, 2640340), (2, 1320170), (4, 660085), (5, 528068), (10, 264034), (20, 132017), (97, 27220), (194, 13610), (388, 6805), (485, 5444), (970, 2722), (1361, 1940)]