9489640

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1811}}^1$

素因数の和:1953

約数の個数: 32

約数和(自身を含む): 21526560

約数和(自身を除く): 12036920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 1811, 2620, 3622, 5240, 7244, 9055, 14488, 18110, 36220, 72440, 237241, 474482, 948964, 1186205, 1897928, 2372410, 4744820, 9489640]

約数ペア:

[(1, 9489640), (2, 4744820), (4, 2372410), (5, 1897928), (8, 1186205), (10, 948964), (20, 474482), (40, 237241), (131, 72440), (262, 36220), (524, 18110), (655, 14488), (1048, 9055), (1310, 7244), (1811, 5240), (2620, 3622)]