20181870416

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1045043}}^1$

素因数の和:1045139

約数の個数: 40

約数和(自身を含む): 41985687744

約数和(自身を除く): 21803817328

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 71, 136, 142, 272, 284, 568, 1136, 1207, 2414, 4828, 9656, 19312, 1045043, 2090086, 4180172, 8360344, 16720688, 17765731, 35531462, 71062924, 74198053, 142125848, 148396106, 284251696, 296792212, 593584424, 1187168848, 1261366901, 2522733802, 5045467604, 10090935208, 20181870416]

約数ペア:

[(1, 20181870416), (2, 10090935208), (4, 5045467604), (8, 2522733802), (16, 1261366901), (17, 1187168848), (34, 593584424), (68, 296792212), (71, 284251696), (136, 148396106), (142, 142125848), (272, 74198053), (284, 71062924), (568, 35531462), (1136, 17765731), (1207, 16720688), (2414, 8360344), (4828, 4180172), (9656, 2090086), (19312, 1045043)]