20386850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{367}}^1$

素因数の和:491

約数の個数: 48

約数和(自身を含む): 41890176

約数和(自身を除く): 21503326

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 101, 110, 202, 275, 367, 505, 550, 734, 1010, 1111, 1835, 2222, 2525, 3670, 4037, 5050, 5555, 8074, 9175, 11110, 18350, 20185, 27775, 37067, 40370, 55550, 74134, 100925, 185335, 201850, 370670, 407737, 815474, 926675, 1853350, 2038685, 4077370, 10193425, 20386850]

約数ペア:

[(1, 20386850), (2, 10193425), (5, 4077370), (10, 2038685), (11, 1853350), (22, 926675), (25, 815474), (50, 407737), (55, 370670), (101, 201850), (110, 185335), (202, 100925), (275, 74134), (367, 55550), (505, 40370), (550, 37067), (734, 27775), (1010, 20185), (1111, 18350), (1835, 11110), (2222, 9175), (2525, 8074), (3670, 5555), (4037, 5050)]