20664656

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:192

約数の個数: 60

約数和(自身を含む): 43968540

約数和(自身を除く): 23303884

約数列:

[1, 2, 4, 8, 16, 17, 34, 41, 68, 82, 109, 136, 164, 218, 272, 289, 328, 436, 578, 656, 697, 872, 1156, 1394, 1744, 1853, 2312, 2788, 3706, 4469, 4624, 5576, 7412, 8938, 11152, 11849, 14824, 17876, 23698, 29648, 31501, 35752, 47396, 63002, 71504, 75973, 94792, 126004, 151946, 189584, 252008, 303892, 504016, 607784, 1215568, 1291541, 2583082, 5166164, 10332328, 20664656]

約数ペア:

[(1, 20664656), (2, 10332328), (4, 5166164), (8, 2583082), (16, 1291541), (17, 1215568), (34, 607784), (41, 504016), (68, 303892), (82, 252008), (109, 189584), (136, 151946), (164, 126004), (218, 94792), (272, 75973), (289, 71504), (328, 63002), (436, 47396), (578, 35752), (656, 31501), (697, 29648), (872, 23698), (1156, 17876), (1394, 14824), (1744, 11849), (1853, 11152), (2312, 8938), (2788, 7412), (3706, 5576), (4469, 4624)]