640955282

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{368789}}^1$

素因数の和:368881

約数の個数: 16

約数和(自身を含む): 1062115200

約数和(自身を除く): 421159918

約数列:

[1, 2, 11, 22, 79, 158, 869, 1738, 368789, 737578, 4056679, 8113358, 29134331, 58268662, 320477641, 640955282]

約数ペア:

[(1, 640955282), (2, 320477641), (11, 58268662), (22, 29134331), (79, 8113358), (158, 4056679), (869, 737578), (1738, 368789)]