788580140

素因数分解:

$2^2\times 5^1\times {\mathrm{1861}}^1\times {\mathrm{21187}}^1$

素因数の和:23057

約数の個数: 24

約数和(自身を含む): 1656986352

約数和(自身を除く): 868406212

約数列:

[1, 2, 4, 5, 10, 20, 1861, 3722, 7444, 9305, 18610, 21187, 37220, 42374, 84748, 105935, 211870, 423740, 39429007, 78858014, 157716028, 197145035, 394290070, 788580140]

約数ペア:

[(1, 788580140), (2, 394290070), (4, 197145035), (5, 157716028), (10, 78858014), (20, 39429007), (1861, 423740), (3722, 211870), (7444, 105935), (9305, 84748), (18610, 42374), (21187, 37220)]