28635740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1493}}^1$

素因数の和:1646

約数の個数: 48

約数和(自身を含む): 69273792

約数和(自身を除く): 40638052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 140, 274, 548, 685, 959, 1370, 1493, 1918, 2740, 2986, 3836, 4795, 5972, 7465, 9590, 10451, 14930, 19180, 20902, 29860, 41804, 52255, 104510, 204541, 209020, 409082, 818164, 1022705, 1431787, 2045410, 2863574, 4090820, 5727148, 7158935, 14317870, 28635740]

約数ペア:

[(1, 28635740), (2, 14317870), (4, 7158935), (5, 5727148), (7, 4090820), (10, 2863574), (14, 2045410), (20, 1431787), (28, 1022705), (35, 818164), (70, 409082), (137, 209020), (140, 204541), (274, 104510), (548, 52255), (685, 41804), (959, 29860), (1370, 20902), (1493, 19180), (1918, 14930), (2740, 10451), (2986, 9590), (3836, 7465), (4795, 5972)]