256421264

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{6971}}^1$

素因数の和:7020

約数の個数: 60

約数和(自身を含む): 574911120

約数和(自身を除く): 318489856

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 121, 152, 176, 209, 242, 304, 418, 484, 836, 968, 1672, 1936, 2299, 3344, 4598, 6971, 9196, 13942, 18392, 27884, 36784, 55768, 76681, 111536, 132449, 153362, 264898, 306724, 529796, 613448, 843491, 1059592, 1226896, 1456939, 1686982, 2119184, 2913878, 3373964, 5827756, 6747928, 11655512, 13495856, 16026329, 23311024, 32052658, 64105316, 128210632, 256421264]

約数ペア:

[(1, 256421264), (2, 128210632), (4, 64105316), (8, 32052658), (11, 23311024), (16, 16026329), (19, 13495856), (22, 11655512), (38, 6747928), (44, 5827756), (76, 3373964), (88, 2913878), (121, 2119184), (152, 1686982), (176, 1456939), (209, 1226896), (242, 1059592), (304, 843491), (418, 613448), (484, 529796), (836, 306724), (968, 264898), (1672, 153362), (1936, 132449), (2299, 111536), (3344, 76681), (4598, 55768), (6971, 36784), (9196, 27884), (13942, 18392)]