256262856

素因数分解:

$2^3\times 3^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{1489}}^1$

素因数の和:1670

約数の個数: 64

約数和(自身を含む): 656553600

約数和(自身を除く): 400290744

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 71, 101, 142, 202, 213, 284, 303, 404, 426, 568, 606, 808, 852, 1212, 1489, 1704, 2424, 2978, 4467, 5956, 7171, 8934, 11912, 14342, 17868, 21513, 28684, 35736, 43026, 57368, 86052, 105719, 150389, 172104, 211438, 300778, 317157, 422876, 451167, 601556, 634314, 845752, 902334, 1203112, 1268628, 1804668, 2537256, 3609336, 10677619, 21355238, 32032857, 42710476, 64065714, 85420952, 128131428, 256262856]

約数ペア:

[(1, 256262856), (2, 128131428), (3, 85420952), (4, 64065714), (6, 42710476), (8, 32032857), (12, 21355238), (24, 10677619), (71, 3609336), (101, 2537256), (142, 1804668), (202, 1268628), (213, 1203112), (284, 902334), (303, 845752), (404, 634314), (426, 601556), (568, 451167), (606, 422876), (808, 317157), (852, 300778), (1212, 211438), (1489, 172104), (1704, 150389), (2424, 105719), (2978, 86052), (4467, 57368), (5956, 43026), (7171, 35736), (8934, 28684), (11912, 21513), (14342, 17868)]