27808720

素因数分解:

$2^4\times 5^1\times {\mathrm{347609}}^1$

素因数の和:347622

約数の個数: 20

約数和(自身を含む): 64655460

約数和(自身を除く): 36846740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 347609, 695218, 1390436, 1738045, 2780872, 3476090, 5561744, 6952180, 13904360, 27808720]

約数ペア:

[(1, 27808720), (2, 13904360), (4, 6952180), (5, 5561744), (8, 3476090), (10, 2780872), (16, 1738045), (20, 1390436), (40, 695218), (80, 347609)]