12838040

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2309}}^1$

素因数の和:2459

約数の個数: 32

約数和(自身を含む): 29106000

約数和(自身を除く): 16267960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2309, 2780, 4618, 5560, 9236, 11545, 18472, 23090, 46180, 92360, 320951, 641902, 1283804, 1604755, 2567608, 3209510, 6419020, 12838040]

約数ペア:

[(1, 12838040), (2, 6419020), (4, 3209510), (5, 2567608), (8, 1604755), (10, 1283804), (20, 641902), (40, 320951), (139, 92360), (278, 46180), (556, 23090), (695, 18472), (1112, 11545), (1390, 9236), (2309, 5560), (2780, 4618)]