81840960

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:361

約数の個数: 168

約数和(自身を含む): 284856936

約数和(自身を除く): 203015976

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 144, 157, 160, 180, 181, 192, 240, 288, 314, 320, 360, 362, 471, 480, 543, 576, 628, 720, 724, 785, 905, 942, 960, 1086, 1256, 1413, 1440, 1448, 1570, 1629, 1810, 1884, 2172, 2355, 2512, 2715, 2826, 2880, 2896, 3140, 3258, 3620, 3768, 4344, 4710, 5024, 5430, 5652, 5792, 6280, 6516, 7065, 7240, 7536, 8145, 8688, 9420, 10048, 10860, 11304, 11584, 12560, 13032, 14130, 14480, 15072, 16290, 17376, 18840, 21720, 22608, 25120, 26064, 28260, 28417, 28960, 30144, 32580, 34752, 37680, 43440, 45216, 50240, 52128, 56520, 56834, 57920, 65160, 75360, 85251, 86880, 90432, 104256, 113040, 113668, 130320, 142085, 150720, 170502, 173760, 226080, 227336, 255753, 260640, 284170, 341004, 426255, 452160, 454672, 511506, 521280, 568340, 682008, 852510, 909344, 1023012, 1136680, 1278765, 1364016, 1705020, 1818688, 2046024, 2273360, 2557530, 2728032, 3410040, 4092048, 4546720, 5115060, 5456064, 6820080, 8184096, 9093440, 10230120, 13640160, 16368192, 20460240, 27280320, 40920480, 81840960]

約数ペア:

[(1, 81840960), (2, 40920480), (3, 27280320), (4, 20460240), (5, 16368192), (6, 13640160), (8, 10230120), (9, 9093440), (10, 8184096), (12, 6820080), (15, 5456064), (16, 5115060), (18, 4546720), (20, 4092048), (24, 3410040), (30, 2728032), (32, 2557530), (36, 2273360), (40, 2046024), (45, 1818688), (48, 1705020), (60, 1364016), (64, 1278765), (72, 1136680), (80, 1023012), (90, 909344), (96, 852510), (120, 682008), (144, 568340), (157, 521280), (160, 511506), (180, 454672), (181, 452160), (192, 426255), (240, 341004), (288, 284170), (314, 260640), (320, 255753), (360, 227336), (362, 226080), (471, 173760), (480, 170502), (543, 150720), (576, 142085), (628, 130320), (720, 113668), (724, 113040), (785, 104256), (905, 90432), (942, 86880), (960, 85251), (1086, 75360), (1256, 65160), (1413, 57920), (1440, 56834), (1448, 56520), (1570, 52128), (1629, 50240), (1810, 45216), (1884, 43440), (2172, 37680), (2355, 34752), (2512, 32580), (2715, 30144), (2826, 28960), (2880, 28417), (2896, 28260), (3140, 26064), (3258, 25120), (3620, 22608), (3768, 21720), (4344, 18840), (4710, 17376), (5024, 16290), (5430, 15072), (5652, 14480), (5792, 14130), (6280, 13032), (6516, 12560), (7065, 11584), (7240, 11304), (7536, 10860), (8145, 10048), (8688, 9420)]