12488720

素因数分解:

$2^4\times 5^1\times {\mathrm{156109}}^1$

素因数の和:156122

約数の個数: 20

約数和(自身を含む): 29036460

約数和(自身を除く): 16547740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 156109, 312218, 624436, 780545, 1248872, 1561090, 2497744, 3122180, 6244360, 12488720]

約数ペア:

[(1, 12488720), (2, 6244360), (4, 3122180), (5, 2497744), (8, 1561090), (10, 1248872), (16, 780545), (20, 624436), (40, 312218), (80, 156109)]