28245140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18341}}^1$

素因数の和:18368

約数の個数: 48

約数和(自身を含む): 73954944

約数和(自身を除く): 45709804

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 18341, 36682, 73364, 91705, 128387, 183410, 201751, 256774, 366820, 403502, 513548, 641935, 807004, 1008755, 1283870, 1412257, 2017510, 2567740, 2824514, 4035020, 5649028, 7061285, 14122570, 28245140]

約数ペア:

[(1, 28245140), (2, 14122570), (4, 7061285), (5, 5649028), (7, 4035020), (10, 2824514), (11, 2567740), (14, 2017510), (20, 1412257), (22, 1283870), (28, 1008755), (35, 807004), (44, 641935), (55, 513548), (70, 403502), (77, 366820), (110, 256774), (140, 201751), (154, 183410), (220, 128387), (308, 91705), (385, 73364), (770, 36682), (1540, 18341)]