640054871

素因数分解:

${\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{1723}}^1$

素因数の和:1982

約数の個数: 16

約数和(自身を含む): 671780736

約数和(自身を除く): 31725865

約数列:

[1, 43, 53, 163, 1723, 2279, 7009, 8639, 74089, 91319, 280849, 371477, 3926717, 12076507, 14884997, 640054871]

約数ペア:

[(1, 640054871), (43, 14884997), (53, 12076507), (163, 3926717), (1723, 371477), (2279, 280849), (7009, 91319), (8639, 74089)]