656254976

素因数分解:

$2^{11}\times {\mathrm{13}}^1\times {\mathrm{157}}^2$

素因数の和:349

約数の個数: 72

約数和(自身を含む): 1422185310

約数和(自身を除く): 765930334

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 157, 208, 256, 314, 416, 512, 628, 832, 1024, 1256, 1664, 2041, 2048, 2512, 3328, 4082, 5024, 6656, 8164, 10048, 13312, 16328, 20096, 24649, 26624, 32656, 40192, 49298, 65312, 80384, 98596, 130624, 160768, 197192, 261248, 320437, 321536, 394384, 522496, 640874, 788768, 1044992, 1281748, 1577536, 2089984, 2563496, 3155072, 4179968, 5126992, 6310144, 10253984, 12620288, 20507968, 25240576, 41015936, 50481152, 82031872, 164063744, 328127488, 656254976]

約数ペア:

[(1, 656254976), (2, 328127488), (4, 164063744), (8, 82031872), (13, 50481152), (16, 41015936), (26, 25240576), (32, 20507968), (52, 12620288), (64, 10253984), (104, 6310144), (128, 5126992), (157, 4179968), (208, 3155072), (256, 2563496), (314, 2089984), (416, 1577536), (512, 1281748), (628, 1044992), (832, 788768), (1024, 640874), (1256, 522496), (1664, 394384), (2041, 321536), (2048, 320437), (2512, 261248), (3328, 197192), (4082, 160768), (5024, 130624), (6656, 98596), (8164, 80384), (10048, 65312), (13312, 49298), (16328, 40192), (20096, 32656), (24649, 26624)]