1980004

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{101}}^1$

素因数の和:160

約数の個数: 36

約数和(自身を含む): 3919860

約数和(自身を除く): 1939856

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 101, 116, 169, 202, 338, 377, 404, 676, 754, 1313, 1508, 2626, 2929, 4901, 5252, 5858, 9802, 11716, 17069, 19604, 34138, 38077, 68276, 76154, 152308, 495001, 990002, 1980004]

約数ペア:

[(1, 1980004), (2, 990002), (4, 495001), (13, 152308), (26, 76154), (29, 68276), (52, 38077), (58, 34138), (101, 19604), (116, 17069), (169, 11716), (202, 9802), (338, 5858), (377, 5252), (404, 4901), (676, 2929), (754, 2626), (1313, 1508)]