1277771884

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{1105339}}^1$

素因数の和:1105377

約数の個数: 18

約数和(自身を含む): 2375375660

約数和(自身を除く): 1097603776

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 1105339, 2210678, 4421356, 18790763, 37581526, 75163052, 319442971, 638885942, 1277771884]

約数ペア:

[(1, 1277771884), (2, 638885942), (4, 319442971), (17, 75163052), (34, 37581526), (68, 18790763), (289, 4421356), (578, 2210678), (1156, 1105339)]