81811968

素因数分解:

$2^9\times 3^1\times 7^2\times {\mathrm{1087}}^1$

素因数の和:1122

約数の個数: 120

約数和(自身を含む): 253769472

約数和(自身を除く): 171957504

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 49, 56, 64, 84, 96, 98, 112, 128, 147, 168, 192, 196, 224, 256, 294, 336, 384, 392, 448, 512, 588, 672, 768, 784, 896, 1087, 1176, 1344, 1536, 1568, 1792, 2174, 2352, 2688, 3136, 3261, 3584, 4348, 4704, 5376, 6272, 6522, 7609, 8696, 9408, 10752, 12544, 13044, 15218, 17392, 18816, 22827, 25088, 26088, 30436, 34784, 37632, 45654, 52176, 53263, 60872, 69568, 75264, 91308, 104352, 106526, 121744, 139136, 159789, 182616, 208704, 213052, 243488, 278272, 319578, 365232, 417408, 426104, 486976, 556544, 639156, 730464, 834816, 852208, 973952, 1278312, 1460928, 1669632, 1704416, 1947904, 2556624, 2921856, 3408832, 3895808, 5113248, 5843712, 6817664, 10226496, 11687424, 13635328, 20452992, 27270656, 40905984, 81811968]

約数ペア:

[(1, 81811968), (2, 40905984), (3, 27270656), (4, 20452992), (6, 13635328), (7, 11687424), (8, 10226496), (12, 6817664), (14, 5843712), (16, 5113248), (21, 3895808), (24, 3408832), (28, 2921856), (32, 2556624), (42, 1947904), (48, 1704416), (49, 1669632), (56, 1460928), (64, 1278312), (84, 973952), (96, 852208), (98, 834816), (112, 730464), (128, 639156), (147, 556544), (168, 486976), (192, 426104), (196, 417408), (224, 365232), (256, 319578), (294, 278272), (336, 243488), (384, 213052), (392, 208704), (448, 182616), (512, 159789), (588, 139136), (672, 121744), (768, 106526), (784, 104352), (896, 91308), (1087, 75264), (1176, 69568), (1344, 60872), (1536, 53263), (1568, 52176), (1792, 45654), (2174, 37632), (2352, 34784), (2688, 30436), (3136, 26088), (3261, 25088), (3584, 22827), (4348, 18816), (4704, 17392), (5376, 15218), (6272, 13044), (6522, 12544), (7609, 10752), (8696, 9408)]