81543280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{487}}^1$

素因数の和:543

約数の個数: 160

約数和(自身を含む): 243984384

約数和(自身を除く): 162441104

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 23, 26, 28, 35, 40, 46, 52, 56, 65, 70, 80, 91, 92, 104, 112, 115, 130, 140, 161, 182, 184, 208, 230, 260, 280, 299, 322, 364, 368, 455, 460, 487, 520, 560, 598, 644, 728, 805, 910, 920, 974, 1040, 1196, 1288, 1456, 1495, 1610, 1820, 1840, 1948, 2093, 2392, 2435, 2576, 2990, 3220, 3409, 3640, 3896, 4186, 4784, 4870, 5980, 6331, 6440, 6818, 7280, 7792, 8372, 9740, 10465, 11201, 11960, 12662, 12880, 13636, 16744, 17045, 19480, 20930, 22402, 23920, 25324, 27272, 31655, 33488, 34090, 38960, 41860, 44317, 44804, 50648, 54544, 56005, 63310, 68180, 78407, 83720, 88634, 89608, 101296, 112010, 126620, 136360, 145613, 156814, 167440, 177268, 179216, 221585, 224020, 253240, 272720, 291226, 313628, 354536, 392035, 443170, 448040, 506480, 582452, 627256, 709072, 728065, 784070, 886340, 896080, 1019291, 1164904, 1254512, 1456130, 1568140, 1772680, 2038582, 2329808, 2912260, 3136280, 3545360, 4077164, 5096455, 5824520, 6272560, 8154328, 10192910, 11649040, 16308656, 20385820, 40771640, 81543280]

約数ペア:

[(1, 81543280), (2, 40771640), (4, 20385820), (5, 16308656), (7, 11649040), (8, 10192910), (10, 8154328), (13, 6272560), (14, 5824520), (16, 5096455), (20, 4077164), (23, 3545360), (26, 3136280), (28, 2912260), (35, 2329808), (40, 2038582), (46, 1772680), (52, 1568140), (56, 1456130), (65, 1254512), (70, 1164904), (80, 1019291), (91, 896080), (92, 886340), (104, 784070), (112, 728065), (115, 709072), (130, 627256), (140, 582452), (161, 506480), (182, 448040), (184, 443170), (208, 392035), (230, 354536), (260, 313628), (280, 291226), (299, 272720), (322, 253240), (364, 224020), (368, 221585), (455, 179216), (460, 177268), (487, 167440), (520, 156814), (560, 145613), (598, 136360), (644, 126620), (728, 112010), (805, 101296), (910, 89608), (920, 88634), (974, 83720), (1040, 78407), (1196, 68180), (1288, 63310), (1456, 56005), (1495, 54544), (1610, 50648), (1820, 44804), (1840, 44317), (1948, 41860), (2093, 38960), (2392, 34090), (2435, 33488), (2576, 31655), (2990, 27272), (3220, 25324), (3409, 23920), (3640, 22402), (3896, 20930), (4186, 19480), (4784, 17045), (4870, 16744), (5980, 13636), (6331, 12880), (6440, 12662), (6818, 11960), (7280, 11201), (7792, 10465), (8372, 9740)]