20447232

素因数分解:

$2^{19}\times 3^1\times {\mathrm{13}}^1$

素因数の和:54

約数の個数: 80

約数和(自身を含む): 58720200

約数和(自身を除く): 38272968

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 128, 156, 192, 208, 256, 312, 384, 416, 512, 624, 768, 832, 1024, 1248, 1536, 1664, 2048, 2496, 3072, 3328, 4096, 4992, 6144, 6656, 8192, 9984, 12288, 13312, 16384, 19968, 24576, 26624, 32768, 39936, 49152, 53248, 65536, 79872, 98304, 106496, 131072, 159744, 196608, 212992, 262144, 319488, 393216, 425984, 524288, 638976, 786432, 851968, 1277952, 1572864, 1703936, 2555904, 3407872, 5111808, 6815744, 10223616, 20447232]

約数ペア:

[(1, 20447232), (2, 10223616), (3, 6815744), (4, 5111808), (6, 3407872), (8, 2555904), (12, 1703936), (13, 1572864), (16, 1277952), (24, 851968), (26, 786432), (32, 638976), (39, 524288), (48, 425984), (52, 393216), (64, 319488), (78, 262144), (96, 212992), (104, 196608), (128, 159744), (156, 131072), (192, 106496), (208, 98304), (256, 79872), (312, 65536), (384, 53248), (416, 49152), (512, 39936), (624, 32768), (768, 26624), (832, 24576), (1024, 19968), (1248, 16384), (1536, 13312), (1664, 12288), (2048, 9984), (2496, 8192), (3072, 6656), (3328, 6144), (4096, 4992)]