28897400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{20641}}^1$

素因数の和:20664

約数の個数: 48

約数和(自身を含む): 76788240

約数和(自身を除く): 47890840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400, 20641, 41282, 82564, 103205, 144487, 165128, 206410, 288974, 412820, 516025, 577948, 722435, 825640, 1032050, 1155896, 1444870, 2064100, 2889740, 3612175, 4128200, 5779480, 7224350, 14448700, 28897400]

約数ペア:

[(1, 28897400), (2, 14448700), (4, 7224350), (5, 5779480), (7, 4128200), (8, 3612175), (10, 2889740), (14, 2064100), (20, 1444870), (25, 1155896), (28, 1032050), (35, 825640), (40, 722435), (50, 577948), (56, 516025), (70, 412820), (100, 288974), (140, 206410), (175, 165128), (200, 144487), (280, 103205), (350, 82564), (700, 41282), (1400, 20641)]