247840256

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{349}}^1$

素因数の和:459

約数の個数: 80

約数和(自身を含む): 529914000

約数和(自身を除く): 282073744

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 73, 76, 128, 146, 152, 256, 292, 304, 349, 512, 584, 608, 698, 1168, 1216, 1387, 1396, 2336, 2432, 2774, 2792, 4672, 4864, 5548, 5584, 6631, 9344, 9728, 11096, 11168, 13262, 18688, 22192, 22336, 25477, 26524, 37376, 44384, 44672, 50954, 53048, 88768, 89344, 101908, 106096, 177536, 178688, 203816, 212192, 355072, 407632, 424384, 484063, 710144, 815264, 848768, 968126, 1630528, 1697536, 1936252, 3261056, 3395072, 3872504, 6522112, 7745008, 13044224, 15490016, 30980032, 61960064, 123920128, 247840256]

約数ペア:

[(1, 247840256), (2, 123920128), (4, 61960064), (8, 30980032), (16, 15490016), (19, 13044224), (32, 7745008), (38, 6522112), (64, 3872504), (73, 3395072), (76, 3261056), (128, 1936252), (146, 1697536), (152, 1630528), (256, 968126), (292, 848768), (304, 815264), (349, 710144), (512, 484063), (584, 424384), (608, 407632), (698, 355072), (1168, 212192), (1216, 203816), (1387, 178688), (1396, 177536), (2336, 106096), (2432, 101908), (2774, 89344), (2792, 88768), (4672, 53048), (4864, 50954), (5548, 44672), (5584, 44384), (6631, 37376), (9344, 26524), (9728, 25477), (11096, 22336), (11168, 22192), (13262, 18688)]