81580851

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:182

約数の個数: 80

約数和(自身を含む): 144038400

約数和(自身を除く): 62457549

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 61, 79, 81, 99, 171, 183, 209, 237, 297, 513, 549, 627, 671, 711, 869, 891, 1159, 1501, 1539, 1647, 1881, 2013, 2133, 2607, 3477, 4503, 4819, 4941, 5643, 6039, 6399, 7821, 10431, 12749, 13509, 14457, 16511, 16929, 18117, 23463, 31293, 38247, 40527, 43371, 49533, 53009, 54351, 70389, 91561, 93879, 114741, 121581, 130113, 148599, 159027, 274683, 344223, 390339, 445797, 477081, 824049, 1007171, 1032669, 1337391, 1431243, 2472147, 3021513, 4293729, 7416441, 9064539, 27193617, 81580851]

約数ペア:

[(1, 81580851), (3, 27193617), (9, 9064539), (11, 7416441), (19, 4293729), (27, 3021513), (33, 2472147), (57, 1431243), (61, 1337391), (79, 1032669), (81, 1007171), (99, 824049), (171, 477081), (183, 445797), (209, 390339), (237, 344223), (297, 274683), (513, 159027), (549, 148599), (627, 130113), (671, 121581), (711, 114741), (869, 93879), (891, 91561), (1159, 70389), (1501, 54351), (1539, 53009), (1647, 49533), (1881, 43371), (2013, 40527), (2133, 38247), (2607, 31293), (3477, 23463), (4503, 18117), (4819, 16929), (4941, 16511), (5643, 14457), (6039, 13509), (6399, 12749), (7821, 10431)]