18468760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1279}}^1$

素因数の和:1328

約数の個数: 48

約数和(自身を含む): 43891200

約数和(自身を除く): 25422440

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1279, 1444, 1805, 2558, 2888, 3610, 5116, 6395, 7220, 10232, 12790, 14440, 24301, 25580, 48602, 51160, 97204, 121505, 194408, 243010, 461719, 486020, 923438, 972040, 1846876, 2308595, 3693752, 4617190, 9234380, 18468760]

約数ペア:

[(1, 18468760), (2, 9234380), (4, 4617190), (5, 3693752), (8, 2308595), (10, 1846876), (19, 972040), (20, 923438), (38, 486020), (40, 461719), (76, 243010), (95, 194408), (152, 121505), (190, 97204), (361, 51160), (380, 48602), (722, 25580), (760, 24301), (1279, 14440), (1444, 12790), (1805, 10232), (2558, 7220), (2888, 6395), (3610, 5116)]