20180857480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{877}}^1\times {\mathrm{82183}}^1$

素因数の和:83078

約数の個数: 64

約数和(自身を含む): 51953437440

約数和(自身を除く): 31772579960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 877, 1754, 3508, 4385, 6139, 7016, 8770, 12278, 17540, 24556, 30695, 35080, 49112, 61390, 82183, 122780, 164366, 245560, 328732, 410915, 575281, 657464, 821830, 1150562, 1643660, 2301124, 2876405, 3287320, 4602248, 5752810, 11505620, 23011240, 72074491, 144148982, 288297964, 360372455, 504521437, 576595928, 720744910, 1009042874, 1441489820, 2018085748, 2522607185, 2882979640, 4036171496, 5045214370, 10090428740, 20180857480]

約数ペア:

[(1, 20180857480), (2, 10090428740), (4, 5045214370), (5, 4036171496), (7, 2882979640), (8, 2522607185), (10, 2018085748), (14, 1441489820), (20, 1009042874), (28, 720744910), (35, 576595928), (40, 504521437), (56, 360372455), (70, 288297964), (140, 144148982), (280, 72074491), (877, 23011240), (1754, 11505620), (3508, 5752810), (4385, 4602248), (6139, 3287320), (7016, 2876405), (8770, 2301124), (12278, 1643660), (17540, 1150562), (24556, 821830), (30695, 657464), (35080, 575281), (49112, 410915), (61390, 328732), (82183, 245560), (122780, 164366)]