681717718

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{436439}}^1$

素因数の和:436523

約数の個数: 16

約数和(自身を含む): 1131252480

約数和(自身を除く): 449534762

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 436439, 872878, 4800829, 9601658, 30987169, 61974338, 340858859, 681717718]

約数ペア:

[(1, 681717718), (2, 340858859), (11, 61974338), (22, 30987169), (71, 9601658), (142, 4800829), (781, 872878), (1562, 436439)]