18325240

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{4723}}^1$

素因数の和:4831

約数の個数: 32

約数和(自身を含む): 41665680

約数和(自身を除く): 23340440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 4723, 9446, 18892, 23615, 37784, 47230, 94460, 188920, 458131, 916262, 1832524, 2290655, 3665048, 4581310, 9162620, 18325240]

約数ペア:

[(1, 18325240), (2, 9162620), (4, 4581310), (5, 3665048), (8, 2290655), (10, 1832524), (20, 916262), (40, 458131), (97, 188920), (194, 94460), (388, 47230), (485, 37784), (776, 23615), (970, 18892), (1940, 9446), (3880, 4723)]