1389895168

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1307}}^1$

素因数の和:1423

約数の個数: 80

約数和(自身を含む): 2911670784

約数和(自身を除く): 1521775616

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 67, 124, 128, 134, 248, 256, 268, 496, 512, 536, 992, 1072, 1307, 1984, 2077, 2144, 2614, 3968, 4154, 4288, 5228, 7936, 8308, 8576, 10456, 15872, 16616, 17152, 20912, 33232, 34304, 40517, 41824, 66464, 81034, 83648, 87569, 132928, 162068, 167296, 175138, 265856, 324136, 334592, 350276, 531712, 648272, 669184, 700552, 1063424, 1296544, 1401104, 2593088, 2714639, 2802208, 5186176, 5429278, 5604416, 10372352, 10858556, 11208832, 20744704, 21717112, 22417664, 43434224, 44835328, 86868448, 173736896, 347473792, 694947584, 1389895168]

約数ペア:

[(1, 1389895168), (2, 694947584), (4, 347473792), (8, 173736896), (16, 86868448), (31, 44835328), (32, 43434224), (62, 22417664), (64, 21717112), (67, 20744704), (124, 11208832), (128, 10858556), (134, 10372352), (248, 5604416), (256, 5429278), (268, 5186176), (496, 2802208), (512, 2714639), (536, 2593088), (992, 1401104), (1072, 1296544), (1307, 1063424), (1984, 700552), (2077, 669184), (2144, 648272), (2614, 531712), (3968, 350276), (4154, 334592), (4288, 324136), (5228, 265856), (7936, 175138), (8308, 167296), (8576, 162068), (10456, 132928), (15872, 87569), (16616, 83648), (17152, 81034), (20912, 66464), (33232, 41824), (34304, 40517)]