20799328

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1597}}^1$

素因数の和:1655

約数の個数: 48

約数和(自身を含む): 45907344

約数和(自身を除く): 25108016

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 37, 44, 74, 88, 148, 176, 296, 352, 407, 592, 814, 1184, 1597, 1628, 3194, 3256, 6388, 6512, 12776, 13024, 17567, 25552, 35134, 51104, 59089, 70268, 118178, 140536, 236356, 281072, 472712, 562144, 649979, 945424, 1299958, 1890848, 2599916, 5199832, 10399664, 20799328]

約数ペア:

[(1, 20799328), (2, 10399664), (4, 5199832), (8, 2599916), (11, 1890848), (16, 1299958), (22, 945424), (32, 649979), (37, 562144), (44, 472712), (74, 281072), (88, 236356), (148, 140536), (176, 118178), (296, 70268), (352, 59089), (407, 51104), (592, 35134), (814, 25552), (1184, 17567), (1597, 13024), (1628, 12776), (3194, 6512), (3256, 6388)]