20455008

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{499}}^1$

素因数の和:580

約数の個数: 96

約数和(自身を含む): 62496000

約数和(自身を除く): 42040992

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 61, 84, 96, 112, 122, 168, 183, 224, 244, 336, 366, 427, 488, 499, 672, 732, 854, 976, 998, 1281, 1464, 1497, 1708, 1952, 1996, 2562, 2928, 2994, 3416, 3493, 3992, 5124, 5856, 5988, 6832, 6986, 7984, 10248, 10479, 11976, 13664, 13972, 15968, 20496, 20958, 23952, 27944, 30439, 40992, 41916, 47904, 55888, 60878, 83832, 91317, 111776, 121756, 167664, 182634, 213073, 243512, 335328, 365268, 426146, 487024, 639219, 730536, 852292, 974048, 1278438, 1461072, 1704584, 2556876, 2922144, 3409168, 5113752, 6818336, 10227504, 20455008]

約数ペア:

[(1, 20455008), (2, 10227504), (3, 6818336), (4, 5113752), (6, 3409168), (7, 2922144), (8, 2556876), (12, 1704584), (14, 1461072), (16, 1278438), (21, 974048), (24, 852292), (28, 730536), (32, 639219), (42, 487024), (48, 426146), (56, 365268), (61, 335328), (84, 243512), (96, 213073), (112, 182634), (122, 167664), (168, 121756), (183, 111776), (224, 91317), (244, 83832), (336, 60878), (366, 55888), (427, 47904), (488, 41916), (499, 40992), (672, 30439), (732, 27944), (854, 23952), (976, 20958), (998, 20496), (1281, 15968), (1464, 13972), (1497, 13664), (1708, 11976), (1952, 10479), (1996, 10248), (2562, 7984), (2928, 6986), (2994, 6832), (3416, 5988), (3493, 5856), (3992, 5124)]