640321248

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{952859}}^1$

素因数の和:952879

約数の個数: 48

約数和(自身を含む): 1920965760

約数和(自身を除く): 1280644512

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672, 952859, 1905718, 2858577, 3811436, 5717154, 6670013, 7622872, 11434308, 13340026, 15245744, 20010039, 22868616, 26680052, 30491488, 40020078, 45737232, 53360104, 80040156, 91474464, 106720208, 160080312, 213440416, 320160624, 640321248]

約数ペア:

[(1, 640321248), (2, 320160624), (3, 213440416), (4, 160080312), (6, 106720208), (7, 91474464), (8, 80040156), (12, 53360104), (14, 45737232), (16, 40020078), (21, 30491488), (24, 26680052), (28, 22868616), (32, 20010039), (42, 15245744), (48, 13340026), (56, 11434308), (84, 7622872), (96, 6670013), (112, 5717154), (168, 3811436), (224, 2858577), (336, 1905718), (672, 952859)]