11781520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{337}}^1$

素因数の和:392

約数の個数: 80

約数和(自身を含む): 30176640

約数和(自身を除く): 18395120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 38, 40, 46, 76, 80, 92, 95, 115, 152, 184, 190, 230, 304, 337, 368, 380, 437, 460, 674, 760, 874, 920, 1348, 1520, 1685, 1748, 1840, 2185, 2696, 3370, 3496, 4370, 5392, 6403, 6740, 6992, 7751, 8740, 12806, 13480, 15502, 17480, 25612, 26960, 31004, 32015, 34960, 38755, 51224, 62008, 64030, 77510, 102448, 124016, 128060, 147269, 155020, 256120, 294538, 310040, 512240, 589076, 620080, 736345, 1178152, 1472690, 2356304, 2945380, 5890760, 11781520]

約数ペア:

[(1, 11781520), (2, 5890760), (4, 2945380), (5, 2356304), (8, 1472690), (10, 1178152), (16, 736345), (19, 620080), (20, 589076), (23, 512240), (38, 310040), (40, 294538), (46, 256120), (76, 155020), (80, 147269), (92, 128060), (95, 124016), (115, 102448), (152, 77510), (184, 64030), (190, 62008), (230, 51224), (304, 38755), (337, 34960), (368, 32015), (380, 31004), (437, 26960), (460, 25612), (674, 17480), (760, 15502), (874, 13480), (920, 12806), (1348, 8740), (1520, 7751), (1685, 6992), (1748, 6740), (1840, 6403), (2185, 5392), (2696, 4370), (3370, 3496)]