640685681

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{283}}^1$

素因数の和:525

約数の個数: 32

約数和(自身を含む): 737763840

約数和(自身を除く): 97078159

約数列:

[1, 17, 19, 43, 163, 283, 323, 731, 817, 2771, 3097, 4811, 5377, 7009, 12169, 13889, 46129, 52649, 91409, 119153, 133171, 206873, 231211, 784193, 876451, 1983547, 2263907, 3930587, 14899667, 33720299, 37687393, 640685681]

約数ペア:

[(1, 640685681), (17, 37687393), (19, 33720299), (43, 14899667), (163, 3930587), (283, 2263907), (323, 1983547), (731, 876451), (817, 784193), (2771, 231211), (3097, 206873), (4811, 133171), (5377, 119153), (7009, 91409), (12169, 52649), (13889, 46129)]