18515584

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 39951360

約数和(自身を除く): 21435776

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 67, 68, 127, 128, 134, 136, 254, 268, 272, 508, 536, 544, 1016, 1072, 1088, 1139, 2032, 2144, 2159, 2176, 2278, 4064, 4288, 4318, 4556, 8128, 8509, 8576, 8636, 9112, 16256, 17018, 17272, 18224, 34036, 34544, 36448, 68072, 69088, 72896, 136144, 138176, 144653, 145792, 272288, 276352, 289306, 544576, 578612, 1089152, 1157224, 2314448, 4628896, 9257792, 18515584]

約数ペア:

[(1, 18515584), (2, 9257792), (4, 4628896), (8, 2314448), (16, 1157224), (17, 1089152), (32, 578612), (34, 544576), (64, 289306), (67, 276352), (68, 272288), (127, 145792), (128, 144653), (134, 138176), (136, 136144), (254, 72896), (268, 69088), (272, 68072), (508, 36448), (536, 34544), (544, 34036), (1016, 18224), (1072, 17272), (1088, 17018), (1139, 16256), (2032, 9112), (2144, 8636), (2159, 8576), (2176, 8509), (2278, 8128), (4064, 4556), (4288, 4318)]