640787942

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{661}}^1\times {\mathrm{10313}}^1$

素因数の和:11023

約数の個数: 16

約数和(自身を含む): 983212992

約数和(自身を除く): 342425050

約数列:

[1, 2, 47, 94, 661, 1322, 10313, 20626, 31067, 62134, 484711, 969422, 6816893, 13633786, 320393971, 640787942]

約数ペア:

[(1, 640787942), (2, 320393971), (47, 13633786), (94, 6816893), (661, 969422), (1322, 484711), (10313, 62134), (20626, 31067)]