28778970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2357}}^1$

素因数の和:2415

約数の個数: 64

約数和(自身を含む): 77417856

約数和(自身を除く): 48638886

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 37, 55, 66, 74, 110, 111, 165, 185, 222, 330, 370, 407, 555, 814, 1110, 1221, 2035, 2357, 2442, 4070, 4714, 6105, 7071, 11785, 12210, 14142, 23570, 25927, 35355, 51854, 70710, 77781, 87209, 129635, 155562, 174418, 259270, 261627, 388905, 436045, 523254, 777810, 872090, 959299, 1308135, 1918598, 2616270, 2877897, 4796495, 5755794, 9592990, 14389485, 28778970]

約数ペア:

[(1, 28778970), (2, 14389485), (3, 9592990), (5, 5755794), (6, 4796495), (10, 2877897), (11, 2616270), (15, 1918598), (22, 1308135), (30, 959299), (33, 872090), (37, 777810), (55, 523254), (66, 436045), (74, 388905), (110, 261627), (111, 259270), (165, 174418), (185, 155562), (222, 129635), (330, 87209), (370, 77781), (407, 70710), (555, 51854), (814, 35355), (1110, 25927), (1221, 23570), (2035, 14142), (2357, 12210), (2442, 11785), (4070, 7071), (4714, 6105)]