78177920

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:202

約数の個数: 128

約数和(自身を含む): 200931840

約数和(自身を除く): 122753920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 47, 64, 80, 92, 94, 113, 115, 128, 160, 184, 188, 226, 230, 235, 320, 368, 376, 452, 460, 470, 565, 640, 736, 752, 904, 920, 940, 1081, 1130, 1472, 1504, 1808, 1840, 1880, 2162, 2260, 2599, 2944, 3008, 3616, 3680, 3760, 4324, 4520, 5198, 5311, 5405, 6016, 7232, 7360, 7520, 8648, 9040, 10396, 10622, 10810, 12995, 14464, 14720, 15040, 17296, 18080, 20792, 21244, 21620, 25990, 26555, 30080, 34592, 36160, 41584, 42488, 43240, 51980, 53110, 69184, 72320, 83168, 84976, 86480, 103960, 106220, 122153, 138368, 166336, 169952, 172960, 207920, 212440, 244306, 332672, 339904, 345920, 415840, 424880, 488612, 610765, 679808, 691840, 831680, 849760, 977224, 1221530, 1663360, 1699520, 1954448, 2443060, 3399040, 3908896, 4886120, 7817792, 9772240, 15635584, 19544480, 39088960, 78177920]

約数ペア:

[(1, 78177920), (2, 39088960), (4, 19544480), (5, 15635584), (8, 9772240), (10, 7817792), (16, 4886120), (20, 3908896), (23, 3399040), (32, 2443060), (40, 1954448), (46, 1699520), (47, 1663360), (64, 1221530), (80, 977224), (92, 849760), (94, 831680), (113, 691840), (115, 679808), (128, 610765), (160, 488612), (184, 424880), (188, 415840), (226, 345920), (230, 339904), (235, 332672), (320, 244306), (368, 212440), (376, 207920), (452, 172960), (460, 169952), (470, 166336), (565, 138368), (640, 122153), (736, 106220), (752, 103960), (904, 86480), (920, 84976), (940, 83168), (1081, 72320), (1130, 69184), (1472, 53110), (1504, 51980), (1808, 43240), (1840, 42488), (1880, 41584), (2162, 36160), (2260, 34592), (2599, 30080), (2944, 26555), (3008, 25990), (3616, 21620), (3680, 21244), (3760, 20792), (4324, 18080), (4520, 17296), (5198, 15040), (5311, 14720), (5405, 14464), (6016, 12995), (7232, 10810), (7360, 10622), (7520, 10396), (8648, 9040)]