18045880

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{4651}}^1$

素因数の和:4759

約数の個数: 32

約数和(自身を含む): 41030640

約数和(自身を除く): 22984760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 4651, 9302, 18604, 23255, 37208, 46510, 93020, 186040, 451147, 902294, 1804588, 2255735, 3609176, 4511470, 9022940, 18045880]

約数ペア:

[(1, 18045880), (2, 9022940), (4, 4511470), (5, 3609176), (8, 2255735), (10, 1804588), (20, 902294), (40, 451147), (97, 186040), (194, 93020), (388, 46510), (485, 37208), (776, 23255), (970, 18604), (1940, 9302), (3880, 4651)]