55198960

素因数分解:

$2^4\times 5^1\times {\mathrm{689987}}^1$

素因数の和:690000

約数の個数: 20

約数和(自身を含む): 128337768

約数和(自身を除く): 73138808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 689987, 1379974, 2759948, 3449935, 5519896, 6899870, 11039792, 13799740, 27599480, 55198960]

約数ペア:

[(1, 55198960), (2, 27599480), (4, 13799740), (5, 11039792), (8, 6899870), (10, 5519896), (16, 3449935), (20, 2759948), (40, 1379974), (80, 689987)]