19925220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47441}}^1$

素因数の和:47460

約数の個数: 48

約数和(自身を含む): 63762048

約数和(自身を除く): 43836828

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 47441, 94882, 142323, 189764, 237205, 284646, 332087, 474410, 569292, 664174, 711615, 948820, 996261, 1328348, 1423230, 1660435, 1992522, 2846460, 3320870, 3985044, 4981305, 6641740, 9962610, 19925220]

約数ペア:

[(1, 19925220), (2, 9962610), (3, 6641740), (4, 4981305), (5, 3985044), (6, 3320870), (7, 2846460), (10, 1992522), (12, 1660435), (14, 1423230), (15, 1328348), (20, 996261), (21, 948820), (28, 711615), (30, 664174), (35, 569292), (42, 474410), (60, 332087), (70, 284646), (84, 237205), (105, 189764), (140, 142323), (210, 94882), (420, 47441)]