20905984

素因数分解:

$2^{16}\times {\mathrm{11}}^1\times {\mathrm{29}}^1$

素因数の和:72

約数の個数: 68

約数和(自身を含む): 47185560

約数和(自身を除く): 26279576

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 32, 44, 58, 64, 88, 116, 128, 176, 232, 256, 319, 352, 464, 512, 638, 704, 928, 1024, 1276, 1408, 1856, 2048, 2552, 2816, 3712, 4096, 5104, 5632, 7424, 8192, 10208, 11264, 14848, 16384, 20416, 22528, 29696, 32768, 40832, 45056, 59392, 65536, 81664, 90112, 118784, 163328, 180224, 237568, 326656, 360448, 475136, 653312, 720896, 950272, 1306624, 1900544, 2613248, 5226496, 10452992, 20905984]

約数ペア:

[(1, 20905984), (2, 10452992), (4, 5226496), (8, 2613248), (11, 1900544), (16, 1306624), (22, 950272), (29, 720896), (32, 653312), (44, 475136), (58, 360448), (64, 326656), (88, 237568), (116, 180224), (128, 163328), (176, 118784), (232, 90112), (256, 81664), (319, 65536), (352, 59392), (464, 45056), (512, 40832), (638, 32768), (704, 29696), (928, 22528), (1024, 20416), (1276, 16384), (1408, 14848), (1856, 11264), (2048, 10208), (2552, 8192), (2816, 7424), (3712, 5632), (4096, 5104)]