67880840

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{15569}}^1$

素因数の和:15689

約数の個数: 32

約数和(自身を含む): 154143000

約数和(自身を除く): 86262160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 15569, 31138, 62276, 77845, 124552, 155690, 311380, 622760, 1697021, 3394042, 6788084, 8485105, 13576168, 16970210, 33940420, 67880840]

約数ペア:

[(1, 67880840), (2, 33940420), (4, 16970210), (5, 13576168), (8, 8485105), (10, 6788084), (20, 3394042), (40, 1697021), (109, 622760), (218, 311380), (436, 155690), (545, 124552), (872, 77845), (1090, 62276), (2180, 31138), (4360, 15569)]