720897772

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1355071}}^1$

素因数の和:1355101

約数の個数: 24

約数和(自身を含む): 1517680640

約数和(自身を除く): 796782868

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 1355071, 2710142, 5420284, 9485497, 18970994, 25746349, 37941988, 51492698, 102985396, 180224443, 360448886, 720897772]

約数ペア:

[(1, 720897772), (2, 360448886), (4, 180224443), (7, 102985396), (14, 51492698), (19, 37941988), (28, 25746349), (38, 18970994), (76, 9485497), (133, 5420284), (266, 2710142), (532, 1355071)]