81678480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{557}}^1$

素因数の和:633

約数の個数: 160

約数和(自身を含む): 278982144

約数和(自身を除く): 197303664

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 47, 48, 52, 60, 65, 78, 80, 94, 104, 120, 130, 141, 156, 188, 195, 208, 235, 240, 260, 282, 312, 376, 390, 470, 520, 557, 564, 611, 624, 705, 752, 780, 940, 1040, 1114, 1128, 1222, 1410, 1560, 1671, 1833, 1880, 2228, 2256, 2444, 2785, 2820, 3055, 3120, 3342, 3666, 3760, 4456, 4888, 5570, 5640, 6110, 6684, 7241, 7332, 8355, 8912, 9165, 9776, 11140, 11280, 12220, 13368, 14482, 14664, 16710, 18330, 21723, 22280, 24440, 26179, 26736, 28964, 29328, 33420, 36205, 36660, 43446, 44560, 48880, 52358, 57928, 66840, 72410, 73320, 78537, 86892, 104716, 108615, 115856, 130895, 133680, 144820, 146640, 157074, 173784, 209432, 217230, 261790, 289640, 314148, 340327, 347568, 392685, 418864, 434460, 523580, 579280, 628296, 680654, 785370, 868920, 1020981, 1047160, 1256592, 1361308, 1570740, 1701635, 1737840, 2041962, 2094320, 2722616, 3141480, 3403270, 4083924, 5104905, 5445232, 6282960, 6806540, 8167848, 10209810, 13613080, 16335696, 20419620, 27226160, 40839240, 81678480]

約数ペア:

[(1, 81678480), (2, 40839240), (3, 27226160), (4, 20419620), (5, 16335696), (6, 13613080), (8, 10209810), (10, 8167848), (12, 6806540), (13, 6282960), (15, 5445232), (16, 5104905), (20, 4083924), (24, 3403270), (26, 3141480), (30, 2722616), (39, 2094320), (40, 2041962), (47, 1737840), (48, 1701635), (52, 1570740), (60, 1361308), (65, 1256592), (78, 1047160), (80, 1020981), (94, 868920), (104, 785370), (120, 680654), (130, 628296), (141, 579280), (156, 523580), (188, 434460), (195, 418864), (208, 392685), (235, 347568), (240, 340327), (260, 314148), (282, 289640), (312, 261790), (376, 217230), (390, 209432), (470, 173784), (520, 157074), (557, 146640), (564, 144820), (611, 133680), (624, 130895), (705, 115856), (752, 108615), (780, 104716), (940, 86892), (1040, 78537), (1114, 73320), (1128, 72410), (1222, 66840), (1410, 57928), (1560, 52358), (1671, 48880), (1833, 44560), (1880, 43446), (2228, 36660), (2256, 36205), (2444, 33420), (2785, 29328), (2820, 28964), (3055, 26736), (3120, 26179), (3342, 24440), (3666, 22280), (3760, 21723), (4456, 18330), (4888, 16710), (5570, 14664), (5640, 14482), (6110, 13368), (6684, 12220), (7241, 11280), (7332, 11140), (8355, 9776), (8912, 9165)]