1720780

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{887}}^1$

素因数の和:993

約数の個数: 24

約数和(自身を含む): 3655008

約数和(自身を除く): 1934228

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 887, 970, 1774, 1940, 3548, 4435, 8870, 17740, 86039, 172078, 344156, 430195, 860390, 1720780]

約数ペア:

[(1, 1720780), (2, 860390), (4, 430195), (5, 344156), (10, 172078), (20, 86039), (97, 17740), (194, 8870), (388, 4435), (485, 3548), (887, 1940), (970, 1774)]