1380974080

素因数分解:

$2^9\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2099}}^1$

素因数の和:2379

約数の個数: 80

約数和(自身を含む): 3325568400

約数和(自身を除く): 1944594320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 257, 320, 512, 514, 640, 1028, 1280, 1285, 2056, 2099, 2560, 2570, 4112, 4198, 5140, 8224, 8396, 10280, 10495, 16448, 16792, 20560, 20990, 32896, 33584, 41120, 41980, 65792, 67168, 82240, 83960, 131584, 134336, 164480, 167920, 268672, 328960, 335840, 537344, 539443, 657920, 671680, 1074688, 1078886, 1343360, 2157772, 2686720, 2697215, 4315544, 5373440, 5394430, 8631088, 10788860, 17262176, 21577720, 34524352, 43155440, 69048704, 86310880, 138097408, 172621760, 276194816, 345243520, 690487040, 1380974080]

約数ペア:

[(1, 1380974080), (2, 690487040), (4, 345243520), (5, 276194816), (8, 172621760), (10, 138097408), (16, 86310880), (20, 69048704), (32, 43155440), (40, 34524352), (64, 21577720), (80, 17262176), (128, 10788860), (160, 8631088), (256, 5394430), (257, 5373440), (320, 4315544), (512, 2697215), (514, 2686720), (640, 2157772), (1028, 1343360), (1280, 1078886), (1285, 1074688), (2056, 671680), (2099, 657920), (2560, 539443), (2570, 537344), (4112, 335840), (4198, 328960), (5140, 268672), (8224, 167920), (8396, 164480), (10280, 134336), (10495, 131584), (16448, 83960), (16792, 82240), (20560, 67168), (20990, 65792), (32896, 41980), (33584, 41120)]