78817940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{135893}}^1$

素因数の和:135931

約数の個数: 24

約数和(自身を含む): 171226440

約数和(自身を除く): 92408500

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 135893, 271786, 543572, 679465, 1358930, 2717860, 3940897, 7881794, 15763588, 19704485, 39408970, 78817940]

約数ペア:

[(1, 78817940), (2, 39408970), (4, 19704485), (5, 15763588), (10, 7881794), (20, 3940897), (29, 2717860), (58, 1358930), (116, 679465), (145, 543572), (290, 271786), (580, 135893)]