2143480

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1307}}^1$

素因数の和:1359

約数の個数: 32

約数和(自身を含む): 4944240

約数和(自身を除く): 2800760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1307, 1640, 2614, 5228, 6535, 10456, 13070, 26140, 52280, 53587, 107174, 214348, 267935, 428696, 535870, 1071740, 2143480]

約数ペア:

[(1, 2143480), (2, 1071740), (4, 535870), (5, 428696), (8, 267935), (10, 214348), (20, 107174), (40, 53587), (41, 52280), (82, 26140), (164, 13070), (205, 10456), (328, 6535), (410, 5228), (820, 2614), (1307, 1640)]