28020876

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{337}}^1$

素因数の和:411

約数の個数: 72

約数和(自身を含む): 72740304

約数和(自身を除く): 44719428

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 41, 52, 78, 82, 123, 156, 164, 169, 246, 337, 338, 492, 507, 533, 674, 676, 1011, 1014, 1066, 1348, 1599, 2022, 2028, 2132, 3198, 4044, 4381, 6396, 6929, 8762, 13143, 13817, 13858, 17524, 20787, 26286, 27634, 27716, 41451, 41574, 52572, 55268, 56953, 82902, 83148, 113906, 165804, 170859, 179621, 227812, 341718, 359242, 538863, 683436, 718484, 1077726, 2155452, 2335073, 4670146, 7005219, 9340292, 14010438, 28020876]

約数ペア:

[(1, 28020876), (2, 14010438), (3, 9340292), (4, 7005219), (6, 4670146), (12, 2335073), (13, 2155452), (26, 1077726), (39, 718484), (41, 683436), (52, 538863), (78, 359242), (82, 341718), (123, 227812), (156, 179621), (164, 170859), (169, 165804), (246, 113906), (337, 83148), (338, 82902), (492, 56953), (507, 55268), (533, 52572), (674, 41574), (676, 41451), (1011, 27716), (1014, 27634), (1066, 26286), (1348, 20787), (1599, 17524), (2022, 13858), (2028, 13817), (2132, 13143), (3198, 8762), (4044, 6929), (4381, 6396)]