13217500

素因数分解:

$2^2\times 5^4\times {\mathrm{17}}^1\times {\mathrm{311}}^1$

素因数の和:352

約数の個数: 60

約数和(自身を含む): 30702672

約数和(自身を除く): 17485172

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 125, 170, 250, 311, 340, 425, 500, 622, 625, 850, 1244, 1250, 1555, 1700, 2125, 2500, 3110, 4250, 5287, 6220, 7775, 8500, 10574, 10625, 15550, 21148, 21250, 26435, 31100, 38875, 42500, 52870, 77750, 105740, 132175, 155500, 194375, 264350, 388750, 528700, 660875, 777500, 1321750, 2643500, 3304375, 6608750, 13217500]

約数ペア:

[(1, 13217500), (2, 6608750), (4, 3304375), (5, 2643500), (10, 1321750), (17, 777500), (20, 660875), (25, 528700), (34, 388750), (50, 264350), (68, 194375), (85, 155500), (100, 132175), (125, 105740), (170, 77750), (250, 52870), (311, 42500), (340, 38875), (425, 31100), (500, 26435), (622, 21250), (625, 21148), (850, 15550), (1244, 10625), (1250, 10574), (1555, 8500), (1700, 7775), (2125, 6220), (2500, 5287), (3110, 4250)]