81891360

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:140

約数の個数: 288

約数和(自身を含む): 302505840

約数和(自身を除く): 220614480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 32, 36, 37, 40, 45, 48, 53, 58, 60, 72, 74, 80, 87, 90, 96, 106, 111, 116, 120, 144, 145, 148, 159, 160, 174, 180, 185, 212, 222, 232, 240, 261, 265, 288, 290, 296, 318, 333, 348, 360, 370, 424, 435, 444, 464, 477, 480, 522, 530, 555, 580, 592, 636, 666, 696, 720, 740, 795, 848, 870, 888, 928, 954, 1044, 1060, 1073, 1110, 1160, 1184, 1272, 1305, 1332, 1392, 1440, 1480, 1537, 1590, 1665, 1696, 1740, 1776, 1908, 1961, 2088, 2120, 2146, 2220, 2320, 2385, 2544, 2610, 2664, 2784, 2960, 3074, 3180, 3219, 3330, 3480, 3552, 3816, 3922, 4176, 4240, 4292, 4440, 4611, 4640, 4770, 5088, 5220, 5328, 5365, 5883, 5920, 6148, 6360, 6438, 6660, 6960, 7632, 7685, 7844, 8352, 8480, 8584, 8880, 9222, 9540, 9657, 9805, 10440, 10656, 10730, 11766, 12296, 12720, 12876, 13320, 13833, 13920, 15264, 15370, 15688, 16095, 17168, 17649, 17760, 18444, 19080, 19314, 19610, 20880, 21460, 23055, 23532, 24592, 25440, 25752, 26640, 27666, 29415, 30740, 31376, 32190, 34336, 35298, 36888, 38160, 38628, 39220, 41760, 42920, 46110, 47064, 48285, 49184, 51504, 53280, 55332, 56869, 58830, 61480, 62752, 64380, 69165, 70596, 73776, 76320, 77256, 78440, 85840, 88245, 92220, 94128, 96570, 103008, 110664, 113738, 117660, 122960, 128760, 138330, 141192, 147552, 154512, 156880, 170607, 171680, 176490, 184440, 188256, 193140, 221328, 227476, 235320, 245920, 257520, 276660, 282384, 284345, 309024, 313760, 341214, 352980, 368880, 386280, 442656, 454952, 470640, 511821, 515040, 553320, 564768, 568690, 682428, 705960, 737760, 772560, 853035, 909904, 941280, 1023642, 1106640, 1137380, 1364856, 1411920, 1545120, 1706070, 1819808, 2047284, 2213280, 2274760, 2559105, 2729712, 2823840, 3412140, 4094568, 4549520, 5118210, 5459424, 6824280, 8189136, 9099040, 10236420, 13648560, 16378272, 20472840, 27297120, 40945680, 81891360]

約数ペア:

[(1, 81891360), (2, 40945680), (3, 27297120), (4, 20472840), (5, 16378272), (6, 13648560), (8, 10236420), (9, 9099040), (10, 8189136), (12, 6824280), (15, 5459424), (16, 5118210), (18, 4549520), (20, 4094568), (24, 3412140), (29, 2823840), (30, 2729712), (32, 2559105), (36, 2274760), (37, 2213280), (40, 2047284), (45, 1819808), (48, 1706070), (53, 1545120), (58, 1411920), (60, 1364856), (72, 1137380), (74, 1106640), (80, 1023642), (87, 941280), (90, 909904), (96, 853035), (106, 772560), (111, 737760), (116, 705960), (120, 682428), (144, 568690), (145, 564768), (148, 553320), (159, 515040), (160, 511821), (174, 470640), (180, 454952), (185, 442656), (212, 386280), (222, 368880), (232, 352980), (240, 341214), (261, 313760), (265, 309024), (288, 284345), (290, 282384), (296, 276660), (318, 257520), (333, 245920), (348, 235320), (360, 227476), (370, 221328), (424, 193140), (435, 188256), (444, 184440), (464, 176490), (477, 171680), (480, 170607), (522, 156880), (530, 154512), (555, 147552), (580, 141192), (592, 138330), (636, 128760), (666, 122960), (696, 117660), (720, 113738), (740, 110664), (795, 103008), (848, 96570), (870, 94128), (888, 92220), (928, 88245), (954, 85840), (1044, 78440), (1060, 77256), (1073, 76320), (1110, 73776), (1160, 70596), (1184, 69165), (1272, 64380), (1305, 62752), (1332, 61480), (1392, 58830), (1440, 56869), (1480, 55332), (1537, 53280), (1590, 51504), (1665, 49184), (1696, 48285), (1740, 47064), (1776, 46110), (1908, 42920), (1961, 41760), (2088, 39220), (2120, 38628), (2146, 38160), (2220, 36888), (2320, 35298), (2385, 34336), (2544, 32190), (2610, 31376), (2664, 30740), (2784, 29415), (2960, 27666), (3074, 26640), (3180, 25752), (3219, 25440), (3330, 24592), (3480, 23532), (3552, 23055), (3816, 21460), (3922, 20880), (4176, 19610), (4240, 19314), (4292, 19080), (4440, 18444), (4611, 17760), (4640, 17649), (4770, 17168), (5088, 16095), (5220, 15688), (5328, 15370), (5365, 15264), (5883, 13920), (5920, 13833), (6148, 13320), (6360, 12876), (6438, 12720), (6660, 12296), (6960, 11766), (7632, 10730), (7685, 10656), (7844, 10440), (8352, 9805), (8480, 9657), (8584, 9540), (8880, 9222)]