28905916

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1721}}^1$

素因数の和:1774

約数の個数: 48

約数和(自身を含む): 60752160

約数和(自身を除く): 31846244

約数列:

[1, 2, 4, 13, 17, 19, 26, 34, 38, 52, 68, 76, 221, 247, 323, 442, 494, 646, 884, 988, 1292, 1721, 3442, 4199, 6884, 8398, 16796, 22373, 29257, 32699, 44746, 58514, 65398, 89492, 117028, 130796, 380341, 425087, 555883, 760682, 850174, 1111766, 1521364, 1700348, 2223532, 7226479, 14452958, 28905916]

約数ペア:

[(1, 28905916), (2, 14452958), (4, 7226479), (13, 2223532), (17, 1700348), (19, 1521364), (26, 1111766), (34, 850174), (38, 760682), (52, 555883), (68, 425087), (76, 380341), (221, 130796), (247, 117028), (323, 89492), (442, 65398), (494, 58514), (646, 44746), (884, 32699), (988, 29257), (1292, 22373), (1721, 16796), (3442, 8398), (4199, 6884)]