20218661632

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{739}}^1\times {\mathrm{8221}}^1$

素因数の和:8989

約数の個数: 72

約数和(自身を含む): 43526939120

約数和(自身を除く): 23308277488

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 739, 832, 1478, 1664, 2956, 3328, 5912, 8221, 9607, 11824, 16442, 19214, 23648, 32884, 38428, 47296, 65768, 76856, 94592, 106873, 131536, 153712, 189184, 213746, 263072, 307424, 427492, 526144, 614848, 854984, 1052288, 1229696, 1709968, 2104576, 2459392, 3419936, 6075319, 6839872, 12150638, 13679744, 24301276, 27359488, 48602552, 78979147, 97205104, 157958294, 194410208, 315916588, 388820416, 631833176, 777640832, 1263666352, 1555281664, 2527332704, 5054665408, 10109330816, 20218661632]

約数ペア:

[(1, 20218661632), (2, 10109330816), (4, 5054665408), (8, 2527332704), (13, 1555281664), (16, 1263666352), (26, 777640832), (32, 631833176), (52, 388820416), (64, 315916588), (104, 194410208), (128, 157958294), (208, 97205104), (256, 78979147), (416, 48602552), (739, 27359488), (832, 24301276), (1478, 13679744), (1664, 12150638), (2956, 6839872), (3328, 6075319), (5912, 3419936), (8221, 2459392), (9607, 2104576), (11824, 1709968), (16442, 1229696), (19214, 1052288), (23648, 854984), (32884, 614848), (38428, 526144), (47296, 427492), (65768, 307424), (76856, 263072), (94592, 213746), (106873, 189184), (131536, 153712)]