81207945

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2833}}^1$

素因数の和:2871

約数の個数: 72

約数和(自身を含む): 176399496

約数和(自身を除く): 95191551

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 49, 63, 65, 91, 105, 117, 147, 195, 245, 273, 315, 441, 455, 585, 637, 735, 819, 1365, 1911, 2205, 2833, 3185, 4095, 5733, 8499, 9555, 14165, 19831, 25497, 28665, 36829, 42495, 59493, 99155, 110487, 127485, 138817, 178479, 184145, 257803, 297465, 331461, 416451, 552435, 694085, 773409, 892395, 1249353, 1289015, 1657305, 1804621, 2082255, 2320227, 3867045, 5413863, 6246765, 9023105, 11601135, 16241589, 27069315, 81207945]

約数ペア:

[(1, 81207945), (3, 27069315), (5, 16241589), (7, 11601135), (9, 9023105), (13, 6246765), (15, 5413863), (21, 3867045), (35, 2320227), (39, 2082255), (45, 1804621), (49, 1657305), (63, 1289015), (65, 1249353), (91, 892395), (105, 773409), (117, 694085), (147, 552435), (195, 416451), (245, 331461), (273, 297465), (315, 257803), (441, 184145), (455, 178479), (585, 138817), (637, 127485), (735, 110487), (819, 99155), (1365, 59493), (1911, 42495), (2205, 36829), (2833, 28665), (3185, 25497), (4095, 19831), (5733, 14165), (8499, 9555)]