81991800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:175

約数の個数: 288

約数和(自身を含む): 310761360

約数和(自身を除く): 228769560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 25, 30, 33, 36, 40, 41, 44, 45, 50, 55, 60, 66, 72, 75, 82, 88, 90, 99, 100, 101, 110, 120, 123, 132, 150, 164, 165, 180, 198, 200, 202, 205, 220, 225, 246, 264, 275, 300, 303, 328, 330, 360, 369, 396, 404, 410, 440, 450, 451, 492, 495, 505, 550, 600, 606, 615, 660, 738, 792, 808, 820, 825, 900, 902, 909, 984, 990, 1010, 1025, 1100, 1111, 1212, 1230, 1320, 1353, 1476, 1515, 1640, 1650, 1800, 1804, 1818, 1845, 1980, 2020, 2050, 2200, 2222, 2255, 2424, 2460, 2475, 2525, 2706, 2952, 3030, 3075, 3300, 3333, 3608, 3636, 3690, 3960, 4040, 4059, 4100, 4141, 4444, 4510, 4545, 4920, 4950, 5050, 5412, 5555, 6060, 6150, 6600, 6666, 6765, 7272, 7380, 7575, 8118, 8200, 8282, 8888, 9020, 9090, 9225, 9900, 9999, 10100, 10824, 11110, 11275, 12120, 12300, 12423, 13332, 13530, 14760, 15150, 16236, 16564, 16665, 18040, 18180, 18450, 19800, 19998, 20200, 20295, 20705, 22220, 22550, 22725, 24600, 24846, 26664, 27060, 27775, 30300, 32472, 33128, 33330, 33825, 36360, 36900, 37269, 39996, 40590, 41410, 44440, 45100, 45450, 45551, 49692, 49995, 54120, 55550, 60600, 62115, 66660, 67650, 73800, 74538, 79992, 81180, 82820, 83325, 90200, 90900, 91102, 99384, 99990, 101475, 103525, 111100, 124230, 133320, 135300, 136653, 149076, 162360, 165640, 166650, 181800, 182204, 186345, 199980, 202950, 207050, 222200, 227755, 248460, 249975, 270600, 273306, 298152, 310575, 333300, 364408, 372690, 399960, 405900, 409959, 414100, 455510, 496920, 499950, 546612, 621150, 666600, 683265, 745380, 811800, 819918, 828200, 911020, 931725, 999900, 1093224, 1138775, 1242300, 1366530, 1490760, 1639836, 1822040, 1863450, 1999800, 2049795, 2277550, 2484600, 2733060, 3279672, 3416325, 3726900, 4099590, 4555100, 5466120, 6832650, 7453800, 8199180, 9110200, 10248975, 13665300, 16398360, 20497950, 27330600, 40995900, 81991800]

約数ペア:

[(1, 81991800), (2, 40995900), (3, 27330600), (4, 20497950), (5, 16398360), (6, 13665300), (8, 10248975), (9, 9110200), (10, 8199180), (11, 7453800), (12, 6832650), (15, 5466120), (18, 4555100), (20, 4099590), (22, 3726900), (24, 3416325), (25, 3279672), (30, 2733060), (33, 2484600), (36, 2277550), (40, 2049795), (41, 1999800), (44, 1863450), (45, 1822040), (50, 1639836), (55, 1490760), (60, 1366530), (66, 1242300), (72, 1138775), (75, 1093224), (82, 999900), (88, 931725), (90, 911020), (99, 828200), (100, 819918), (101, 811800), (110, 745380), (120, 683265), (123, 666600), (132, 621150), (150, 546612), (164, 499950), (165, 496920), (180, 455510), (198, 414100), (200, 409959), (202, 405900), (205, 399960), (220, 372690), (225, 364408), (246, 333300), (264, 310575), (275, 298152), (300, 273306), (303, 270600), (328, 249975), (330, 248460), (360, 227755), (369, 222200), (396, 207050), (404, 202950), (410, 199980), (440, 186345), (450, 182204), (451, 181800), (492, 166650), (495, 165640), (505, 162360), (550, 149076), (600, 136653), (606, 135300), (615, 133320), (660, 124230), (738, 111100), (792, 103525), (808, 101475), (820, 99990), (825, 99384), (900, 91102), (902, 90900), (909, 90200), (984, 83325), (990, 82820), (1010, 81180), (1025, 79992), (1100, 74538), (1111, 73800), (1212, 67650), (1230, 66660), (1320, 62115), (1353, 60600), (1476, 55550), (1515, 54120), (1640, 49995), (1650, 49692), (1800, 45551), (1804, 45450), (1818, 45100), (1845, 44440), (1980, 41410), (2020, 40590), (2050, 39996), (2200, 37269), (2222, 36900), (2255, 36360), (2424, 33825), (2460, 33330), (2475, 33128), (2525, 32472), (2706, 30300), (2952, 27775), (3030, 27060), (3075, 26664), (3300, 24846), (3333, 24600), (3608, 22725), (3636, 22550), (3690, 22220), (3960, 20705), (4040, 20295), (4059, 20200), (4100, 19998), (4141, 19800), (4444, 18450), (4510, 18180), (4545, 18040), (4920, 16665), (4950, 16564), (5050, 16236), (5412, 15150), (5555, 14760), (6060, 13530), (6150, 13332), (6600, 12423), (6666, 12300), (6765, 12120), (7272, 11275), (7380, 11110), (7575, 10824), (8118, 10100), (8200, 9999), (8282, 9900), (8888, 9225), (9020, 9090)]