20123497720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1740787}}^1$

素因数の和:1740832

約数の個数: 48

約数和(自身を含む): 48097972440

約数和(自身を除く): 27974474720

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 578, 680, 1156, 1445, 2312, 2890, 5780, 11560, 1740787, 3481574, 6963148, 8703935, 13926296, 17407870, 29593379, 34815740, 59186758, 69631480, 118373516, 147966895, 236747032, 295933790, 503087443, 591867580, 1006174886, 1183735160, 2012349772, 2515437215, 4024699544, 5030874430, 10061748860, 20123497720]

約数ペア:

[(1, 20123497720), (2, 10061748860), (4, 5030874430), (5, 4024699544), (8, 2515437215), (10, 2012349772), (17, 1183735160), (20, 1006174886), (34, 591867580), (40, 503087443), (68, 295933790), (85, 236747032), (136, 147966895), (170, 118373516), (289, 69631480), (340, 59186758), (578, 34815740), (680, 29593379), (1156, 17407870), (1445, 13926296), (2312, 8703935), (2890, 6963148), (5780, 3481574), (11560, 1740787)]