28243956

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{733}}^1$

素因数の和:785

約数の個数: 72

約数和(自身を含む): 75220320

約数和(自身を除く): 46976364

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 169, 228, 247, 338, 494, 507, 676, 733, 741, 988, 1014, 1466, 1482, 2028, 2199, 2932, 2964, 3211, 4398, 6422, 8796, 9529, 9633, 12844, 13927, 19058, 19266, 27854, 28587, 38116, 38532, 41781, 55708, 57174, 83562, 114348, 123877, 167124, 181051, 247754, 362102, 371631, 495508, 543153, 724204, 743262, 1086306, 1486524, 2172612, 2353663, 4707326, 7060989, 9414652, 14121978, 28243956]

約数ペア:

[(1, 28243956), (2, 14121978), (3, 9414652), (4, 7060989), (6, 4707326), (12, 2353663), (13, 2172612), (19, 1486524), (26, 1086306), (38, 743262), (39, 724204), (52, 543153), (57, 495508), (76, 371631), (78, 362102), (114, 247754), (156, 181051), (169, 167124), (228, 123877), (247, 114348), (338, 83562), (494, 57174), (507, 55708), (676, 41781), (733, 38532), (741, 38116), (988, 28587), (1014, 27854), (1466, 19266), (1482, 19058), (2028, 13927), (2199, 12844), (2932, 9633), (2964, 9529), (3211, 8796), (4398, 6422)]