28291480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1279}}^1$

素因数の和:1376

約数の個数: 64

約数和(自身を含む): 73728000

約数和(自身を除く): 45436520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 140, 158, 280, 316, 395, 553, 632, 790, 1106, 1279, 1580, 2212, 2558, 2765, 3160, 4424, 5116, 5530, 6395, 8953, 10232, 11060, 12790, 17906, 22120, 25580, 35812, 44765, 51160, 71624, 89530, 101041, 179060, 202082, 358120, 404164, 505205, 707287, 808328, 1010410, 1414574, 2020820, 2829148, 3536435, 4041640, 5658296, 7072870, 14145740, 28291480]

約数ペア:

[(1, 28291480), (2, 14145740), (4, 7072870), (5, 5658296), (7, 4041640), (8, 3536435), (10, 2829148), (14, 2020820), (20, 1414574), (28, 1010410), (35, 808328), (40, 707287), (56, 505205), (70, 404164), (79, 358120), (140, 202082), (158, 179060), (280, 101041), (316, 89530), (395, 71624), (553, 51160), (632, 44765), (790, 35812), (1106, 25580), (1279, 22120), (1580, 17906), (2212, 12790), (2558, 11060), (2765, 10232), (3160, 8953), (4424, 6395), (5116, 5530)]