257123520

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1223}}^1$

素因数の和:1319

約数の個数: 168

約数和(自身を含む): 897245856

約数和(自身を除く): 640122336

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 73, 80, 90, 96, 120, 144, 146, 160, 180, 192, 219, 240, 288, 292, 320, 360, 365, 438, 480, 576, 584, 657, 720, 730, 876, 960, 1095, 1168, 1223, 1314, 1440, 1460, 1752, 2190, 2336, 2446, 2628, 2880, 2920, 3285, 3504, 3669, 4380, 4672, 4892, 5256, 5840, 6115, 6570, 7008, 7338, 8760, 9784, 10512, 11007, 11680, 12230, 13140, 14016, 14676, 17520, 18345, 19568, 21024, 22014, 23360, 24460, 26280, 29352, 35040, 36690, 39136, 42048, 44028, 48920, 52560, 55035, 58704, 70080, 73380, 78272, 88056, 89279, 97840, 105120, 110070, 117408, 146760, 176112, 178558, 195680, 210240, 220140, 234816, 267837, 293520, 352224, 357116, 391360, 440280, 446395, 535674, 587040, 704448, 714232, 803511, 880560, 892790, 1071348, 1174080, 1339185, 1428464, 1607022, 1761120, 1785580, 2142696, 2678370, 2856928, 3214044, 3522240, 3571160, 4017555, 4285392, 5356740, 5713856, 6428088, 7142320, 8035110, 8570784, 10713480, 12856176, 14284640, 16070220, 17141568, 21426960, 25712352, 28569280, 32140440, 42853920, 51424704, 64280880, 85707840, 128561760, 257123520]

約数ペア:

[(1, 257123520), (2, 128561760), (3, 85707840), (4, 64280880), (5, 51424704), (6, 42853920), (8, 32140440), (9, 28569280), (10, 25712352), (12, 21426960), (15, 17141568), (16, 16070220), (18, 14284640), (20, 12856176), (24, 10713480), (30, 8570784), (32, 8035110), (36, 7142320), (40, 6428088), (45, 5713856), (48, 5356740), (60, 4285392), (64, 4017555), (72, 3571160), (73, 3522240), (80, 3214044), (90, 2856928), (96, 2678370), (120, 2142696), (144, 1785580), (146, 1761120), (160, 1607022), (180, 1428464), (192, 1339185), (219, 1174080), (240, 1071348), (288, 892790), (292, 880560), (320, 803511), (360, 714232), (365, 704448), (438, 587040), (480, 535674), (576, 446395), (584, 440280), (657, 391360), (720, 357116), (730, 352224), (876, 293520), (960, 267837), (1095, 234816), (1168, 220140), (1223, 210240), (1314, 195680), (1440, 178558), (1460, 176112), (1752, 146760), (2190, 117408), (2336, 110070), (2446, 105120), (2628, 97840), (2880, 89279), (2920, 88056), (3285, 78272), (3504, 73380), (3669, 70080), (4380, 58704), (4672, 55035), (4892, 52560), (5256, 48920), (5840, 44028), (6115, 42048), (6570, 39136), (7008, 36690), (7338, 35040), (8760, 29352), (9784, 26280), (10512, 24460), (11007, 23360), (11680, 22014), (12230, 21024), (13140, 19568), (14016, 18345), (14676, 17520)]