28672007

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 39836160

約数和(自身を除く): 11164153

約数列:

[1, 7, 13, 19, 23, 49, 91, 103, 133, 161, 247, 299, 437, 637, 721, 931, 1127, 1339, 1729, 1957, 2093, 2369, 3059, 5047, 5681, 9373, 12103, 13699, 14651, 16583, 21413, 25441, 30797, 39767, 45011, 65611, 95893, 116081, 178087, 215579, 278369, 315077, 585143, 1246609, 1509053, 2205539, 4096001, 28672007]

約数ペア:

[(1, 28672007), (7, 4096001), (13, 2205539), (19, 1509053), (23, 1246609), (49, 585143), (91, 315077), (103, 278369), (133, 215579), (161, 178087), (247, 116081), (299, 95893), (437, 65611), (637, 45011), (721, 39767), (931, 30797), (1127, 25441), (1339, 21413), (1729, 16583), (1957, 14651), (2093, 13699), (2369, 12103), (3059, 9373), (5047, 5681)]