20215657952

素因数分解:

$2^5\times 7^2\times {\mathrm{83}}^1\times {\mathrm{155333}}^1$

素因数の和:155440

約数の個数: 72

約数和(自身を含む): 46855569096

約数和(自身を除く): 26639911144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 83, 98, 112, 166, 196, 224, 332, 392, 581, 664, 784, 1162, 1328, 1568, 2324, 2656, 4067, 4648, 8134, 9296, 16268, 18592, 32536, 65072, 130144, 155333, 310666, 621332, 1087331, 1242664, 2174662, 2485328, 4349324, 4970656, 7611317, 8698648, 12892639, 15222634, 17397296, 25785278, 30445268, 34794592, 51570556, 60890536, 90248473, 103141112, 121781072, 180496946, 206282224, 243562144, 360993892, 412564448, 631739311, 721987784, 1263478622, 1443975568, 2526957244, 2887951136, 5053914488, 10107828976, 20215657952]

約数ペア:

[(1, 20215657952), (2, 10107828976), (4, 5053914488), (7, 2887951136), (8, 2526957244), (14, 1443975568), (16, 1263478622), (28, 721987784), (32, 631739311), (49, 412564448), (56, 360993892), (83, 243562144), (98, 206282224), (112, 180496946), (166, 121781072), (196, 103141112), (224, 90248473), (332, 60890536), (392, 51570556), (581, 34794592), (664, 30445268), (784, 25785278), (1162, 17397296), (1328, 15222634), (1568, 12892639), (2324, 8698648), (2656, 7611317), (4067, 4970656), (4648, 4349324), (8134, 2485328), (9296, 2174662), (16268, 1242664), (18592, 1087331), (32536, 621332), (65072, 310666), (130144, 155333)]