20545616

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:268

約数の個数: 80

約数和(自身を含む): 49830144

約数和(自身を除く): 29284528

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 103, 104, 112, 137, 182, 206, 208, 274, 364, 412, 548, 721, 728, 824, 959, 1096, 1339, 1442, 1456, 1648, 1781, 1918, 2192, 2678, 2884, 3562, 3836, 5356, 5768, 7124, 7672, 9373, 10712, 11536, 12467, 14111, 14248, 15344, 18746, 21424, 24934, 28222, 28496, 37492, 49868, 56444, 74984, 98777, 99736, 112888, 149968, 183443, 197554, 199472, 225776, 366886, 395108, 733772, 790216, 1284101, 1467544, 1580432, 2568202, 2935088, 5136404, 10272808, 20545616]

約数ペア:

[(1, 20545616), (2, 10272808), (4, 5136404), (7, 2935088), (8, 2568202), (13, 1580432), (14, 1467544), (16, 1284101), (26, 790216), (28, 733772), (52, 395108), (56, 366886), (91, 225776), (103, 199472), (104, 197554), (112, 183443), (137, 149968), (182, 112888), (206, 99736), (208, 98777), (274, 74984), (364, 56444), (412, 49868), (548, 37492), (721, 28496), (728, 28222), (824, 24934), (959, 21424), (1096, 18746), (1339, 15344), (1442, 14248), (1456, 14111), (1648, 12467), (1781, 11536), (1918, 10712), (2192, 9373), (2678, 7672), (2884, 7124), (3562, 5768), (3836, 5356)]