81649080

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1$

素因数の和:235

約数の個数: 256

約数和(自身を含む): 300672000

約数和(自身を除く): 219022920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 23, 24, 27, 30, 36, 38, 40, 45, 46, 54, 57, 60, 69, 72, 76, 90, 92, 95, 108, 114, 115, 120, 135, 138, 152, 171, 173, 180, 184, 190, 207, 216, 228, 230, 270, 276, 285, 342, 345, 346, 360, 380, 414, 437, 456, 460, 513, 519, 540, 552, 570, 621, 684, 690, 692, 760, 828, 855, 865, 874, 920, 1026, 1035, 1038, 1080, 1140, 1242, 1311, 1368, 1380, 1384, 1557, 1656, 1710, 1730, 1748, 2052, 2070, 2076, 2185, 2280, 2484, 2565, 2595, 2622, 2760, 3105, 3114, 3287, 3420, 3460, 3496, 3933, 3979, 4104, 4140, 4152, 4370, 4671, 4968, 5130, 5190, 5244, 6210, 6228, 6555, 6574, 6840, 6920, 7785, 7866, 7958, 8280, 8740, 9342, 9861, 10260, 10380, 10488, 11799, 11937, 12420, 12456, 13110, 13148, 15570, 15732, 15916, 16435, 17480, 18684, 19665, 19722, 19895, 20520, 20760, 23355, 23598, 23874, 24840, 26220, 26296, 29583, 31140, 31464, 31832, 32870, 35811, 37368, 39330, 39444, 39790, 46710, 47196, 47748, 49305, 52440, 58995, 59166, 59685, 62280, 65740, 71622, 75601, 78660, 78888, 79580, 88749, 93420, 94392, 95496, 98610, 107433, 117990, 118332, 119370, 131480, 143244, 147915, 151202, 157320, 159160, 177498, 179055, 186840, 197220, 214866, 226803, 235980, 236664, 238740, 286488, 295830, 302404, 354996, 358110, 378005, 394440, 429732, 443745, 453606, 471960, 477480, 537165, 591660, 604808, 680409, 709992, 716220, 756010, 859464, 887490, 907212, 1074330, 1134015, 1183320, 1360818, 1432440, 1512020, 1774980, 1814424, 2041227, 2148660, 2268030, 2721636, 3024040, 3402045, 3549960, 4082454, 4297320, 4536060, 5443272, 6804090, 8164908, 9072120, 10206135, 13608180, 16329816, 20412270, 27216360, 40824540, 81649080]

約数ペア:

[(1, 81649080), (2, 40824540), (3, 27216360), (4, 20412270), (5, 16329816), (6, 13608180), (8, 10206135), (9, 9072120), (10, 8164908), (12, 6804090), (15, 5443272), (18, 4536060), (19, 4297320), (20, 4082454), (23, 3549960), (24, 3402045), (27, 3024040), (30, 2721636), (36, 2268030), (38, 2148660), (40, 2041227), (45, 1814424), (46, 1774980), (54, 1512020), (57, 1432440), (60, 1360818), (69, 1183320), (72, 1134015), (76, 1074330), (90, 907212), (92, 887490), (95, 859464), (108, 756010), (114, 716220), (115, 709992), (120, 680409), (135, 604808), (138, 591660), (152, 537165), (171, 477480), (173, 471960), (180, 453606), (184, 443745), (190, 429732), (207, 394440), (216, 378005), (228, 358110), (230, 354996), (270, 302404), (276, 295830), (285, 286488), (342, 238740), (345, 236664), (346, 235980), (360, 226803), (380, 214866), (414, 197220), (437, 186840), (456, 179055), (460, 177498), (513, 159160), (519, 157320), (540, 151202), (552, 147915), (570, 143244), (621, 131480), (684, 119370), (690, 118332), (692, 117990), (760, 107433), (828, 98610), (855, 95496), (865, 94392), (874, 93420), (920, 88749), (1026, 79580), (1035, 78888), (1038, 78660), (1080, 75601), (1140, 71622), (1242, 65740), (1311, 62280), (1368, 59685), (1380, 59166), (1384, 58995), (1557, 52440), (1656, 49305), (1710, 47748), (1730, 47196), (1748, 46710), (2052, 39790), (2070, 39444), (2076, 39330), (2185, 37368), (2280, 35811), (2484, 32870), (2565, 31832), (2595, 31464), (2622, 31140), (2760, 29583), (3105, 26296), (3114, 26220), (3287, 24840), (3420, 23874), (3460, 23598), (3496, 23355), (3933, 20760), (3979, 20520), (4104, 19895), (4140, 19722), (4152, 19665), (4370, 18684), (4671, 17480), (4968, 16435), (5130, 15916), (5190, 15732), (5244, 15570), (6210, 13148), (6228, 13110), (6555, 12456), (6574, 12420), (6840, 11937), (6920, 11799), (7785, 10488), (7866, 10380), (7958, 10260), (8280, 9861), (8740, 9342)]