20123768504

素因数分解:

$2^3\times 7^1\times {\mathrm{2803}}^1\times {\mathrm{128203}}^1$

素因数の和:131019

約数の個数: 32

約数和(自身を含む): 43138081920

約数和(自身を除く): 23014313416

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 2803, 5606, 11212, 19621, 22424, 39242, 78484, 128203, 156968, 256406, 512812, 897421, 1025624, 1794842, 3589684, 7179368, 359353009, 718706018, 1437412036, 2515471063, 2874824072, 5030942126, 10061884252, 20123768504]

約数ペア:

[(1, 20123768504), (2, 10061884252), (4, 5030942126), (7, 2874824072), (8, 2515471063), (14, 1437412036), (28, 718706018), (56, 359353009), (2803, 7179368), (5606, 3589684), (11212, 1794842), (19621, 1025624), (22424, 897421), (39242, 512812), (78484, 256406), (128203, 156968)]