81807840

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{653}}^1$

素因数の和:706

約数の個数: 192

約数和(自身を含む): 296654400

約数和(自身を除く): 214846560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 29, 30, 32, 36, 40, 45, 48, 54, 58, 60, 72, 80, 87, 90, 96, 108, 116, 120, 135, 144, 145, 160, 174, 180, 216, 232, 240, 261, 270, 288, 290, 348, 360, 432, 435, 464, 480, 522, 540, 580, 653, 696, 720, 783, 864, 870, 928, 1044, 1080, 1160, 1305, 1306, 1392, 1440, 1566, 1740, 1959, 2088, 2160, 2320, 2610, 2612, 2784, 3132, 3265, 3480, 3915, 3918, 4176, 4320, 4640, 5220, 5224, 5877, 6264, 6530, 6960, 7830, 7836, 8352, 9795, 10440, 10448, 11754, 12528, 13060, 13920, 15660, 15672, 17631, 18937, 19590, 20880, 20896, 23508, 25056, 26120, 29385, 31320, 31344, 35262, 37874, 39180, 41760, 47016, 52240, 56811, 58770, 62640, 62688, 70524, 75748, 78360, 88155, 94032, 94685, 104480, 113622, 117540, 125280, 141048, 151496, 156720, 170433, 176310, 188064, 189370, 227244, 235080, 282096, 284055, 302992, 313440, 340866, 352620, 378740, 454488, 470160, 511299, 564192, 568110, 605984, 681732, 705240, 757480, 852165, 908976, 940320, 1022598, 1136220, 1363464, 1410480, 1514960, 1704330, 1817952, 2045196, 2272440, 2556495, 2726928, 2820960, 3029920, 3408660, 4090392, 4544880, 5112990, 5453856, 6817320, 8180784, 9089760, 10225980, 13634640, 16361568, 20451960, 27269280, 40903920, 81807840]

約数ペア:

[(1, 81807840), (2, 40903920), (3, 27269280), (4, 20451960), (5, 16361568), (6, 13634640), (8, 10225980), (9, 9089760), (10, 8180784), (12, 6817320), (15, 5453856), (16, 5112990), (18, 4544880), (20, 4090392), (24, 3408660), (27, 3029920), (29, 2820960), (30, 2726928), (32, 2556495), (36, 2272440), (40, 2045196), (45, 1817952), (48, 1704330), (54, 1514960), (58, 1410480), (60, 1363464), (72, 1136220), (80, 1022598), (87, 940320), (90, 908976), (96, 852165), (108, 757480), (116, 705240), (120, 681732), (135, 605984), (144, 568110), (145, 564192), (160, 511299), (174, 470160), (180, 454488), (216, 378740), (232, 352620), (240, 340866), (261, 313440), (270, 302992), (288, 284055), (290, 282096), (348, 235080), (360, 227244), (432, 189370), (435, 188064), (464, 176310), (480, 170433), (522, 156720), (540, 151496), (580, 141048), (653, 125280), (696, 117540), (720, 113622), (783, 104480), (864, 94685), (870, 94032), (928, 88155), (1044, 78360), (1080, 75748), (1160, 70524), (1305, 62688), (1306, 62640), (1392, 58770), (1440, 56811), (1566, 52240), (1740, 47016), (1959, 41760), (2088, 39180), (2160, 37874), (2320, 35262), (2610, 31344), (2612, 31320), (2784, 29385), (3132, 26120), (3265, 25056), (3480, 23508), (3915, 20896), (3918, 20880), (4176, 19590), (4320, 18937), (4640, 17631), (5220, 15672), (5224, 15660), (5877, 13920), (6264, 13060), (6530, 12528), (6960, 11754), (7830, 10448), (7836, 10440), (8352, 9795)]