256758392

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{78857}}^1$

素因数の和:78911

約数の個数: 32

約数和(自身を含む): 539388720

約数和(自身を除く): 282630328

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 74, 88, 148, 296, 407, 814, 1628, 3256, 78857, 157714, 315428, 630856, 867427, 1734854, 2917709, 3469708, 5835418, 6939416, 11670836, 23341672, 32094799, 64189598, 128379196, 256758392]

約数ペア:

[(1, 256758392), (2, 128379196), (4, 64189598), (8, 32094799), (11, 23341672), (22, 11670836), (37, 6939416), (44, 5835418), (74, 3469708), (88, 2917709), (148, 1734854), (296, 867427), (407, 630856), (814, 315428), (1628, 157714), (3256, 78857)]