20519408

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{829}}^1$

素因数の和:874

約数の個数: 80

約数和(自身を含む): 51871680

約数和(自身を除く): 31352272

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 34, 52, 56, 68, 91, 104, 112, 119, 136, 182, 208, 221, 238, 272, 364, 442, 476, 728, 829, 884, 952, 1456, 1547, 1658, 1768, 1904, 3094, 3316, 3536, 5803, 6188, 6632, 10777, 11606, 12376, 13264, 14093, 21554, 23212, 24752, 28186, 43108, 46424, 56372, 75439, 86216, 92848, 98651, 112744, 150878, 172432, 183209, 197302, 225488, 301756, 366418, 394604, 603512, 732836, 789208, 1207024, 1282463, 1465672, 1578416, 2564926, 2931344, 5129852, 10259704, 20519408]

約数ペア:

[(1, 20519408), (2, 10259704), (4, 5129852), (7, 2931344), (8, 2564926), (13, 1578416), (14, 1465672), (16, 1282463), (17, 1207024), (26, 789208), (28, 732836), (34, 603512), (52, 394604), (56, 366418), (68, 301756), (91, 225488), (104, 197302), (112, 183209), (119, 172432), (136, 150878), (182, 112744), (208, 98651), (221, 92848), (238, 86216), (272, 75439), (364, 56372), (442, 46424), (476, 43108), (728, 28186), (829, 24752), (884, 23212), (952, 21554), (1456, 14093), (1547, 13264), (1658, 12376), (1768, 11606), (1904, 10777), (3094, 6632), (3316, 6188), (3536, 5803)]