664946572

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{52391}}^1$

素因数の和:52581

約数の個数: 24

約数和(自身を含む): 1232259840

約数和(自身を除く): 567313268

約数列:

[1, 2, 4, 19, 38, 76, 167, 334, 668, 3173, 6346, 12692, 52391, 104782, 209564, 995429, 1990858, 3981716, 8749297, 17498594, 34997188, 166236643, 332473286, 664946572]

約数ペア:

[(1, 664946572), (2, 332473286), (4, 166236643), (19, 34997188), (38, 17498594), (76, 8749297), (167, 3981716), (334, 1990858), (668, 995429), (3173, 209564), (6346, 104782), (12692, 52391)]