81514560

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:189

約数の個数: 224

約数和(自身を含む): 281635200

約数和(自身を除く): 200120640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 41, 48, 57, 60, 64, 76, 80, 82, 95, 96, 109, 114, 120, 123, 152, 160, 164, 190, 192, 205, 218, 228, 240, 246, 285, 304, 320, 327, 328, 380, 410, 436, 456, 480, 492, 545, 570, 608, 615, 654, 656, 760, 779, 820, 872, 912, 960, 984, 1090, 1140, 1216, 1230, 1308, 1312, 1520, 1558, 1635, 1640, 1744, 1824, 1968, 2071, 2180, 2280, 2337, 2460, 2616, 2624, 3040, 3116, 3270, 3280, 3488, 3648, 3895, 3936, 4142, 4360, 4469, 4560, 4674, 4920, 5232, 6080, 6213, 6232, 6540, 6560, 6976, 7790, 7872, 8284, 8720, 8938, 9120, 9348, 9840, 10355, 10464, 11685, 12426, 12464, 13080, 13120, 13407, 15580, 16568, 17440, 17876, 18240, 18696, 19680, 20710, 20928, 22345, 23370, 24852, 24928, 26160, 26814, 31065, 31160, 33136, 34880, 35752, 37392, 39360, 41420, 44690, 46740, 49704, 49856, 52320, 53628, 62130, 62320, 66272, 67035, 71504, 74784, 82840, 84911, 89380, 93480, 99408, 104640, 107256, 124260, 124640, 132544, 134070, 143008, 149568, 165680, 169822, 178760, 186960, 198816, 214512, 248520, 249280, 254733, 268140, 286016, 331360, 339644, 357520, 373920, 397632, 424555, 429024, 497040, 509466, 536280, 662720, 679288, 715040, 747840, 849110, 858048, 994080, 1018932, 1072560, 1273665, 1358576, 1430080, 1698220, 1988160, 2037864, 2145120, 2547330, 2717152, 3396440, 4075728, 4290240, 5094660, 5434304, 6792880, 8151456, 10189320, 13585760, 16302912, 20378640, 27171520, 40757280, 81514560]

約数ペア:

[(1, 81514560), (2, 40757280), (3, 27171520), (4, 20378640), (5, 16302912), (6, 13585760), (8, 10189320), (10, 8151456), (12, 6792880), (15, 5434304), (16, 5094660), (19, 4290240), (20, 4075728), (24, 3396440), (30, 2717152), (32, 2547330), (38, 2145120), (40, 2037864), (41, 1988160), (48, 1698220), (57, 1430080), (60, 1358576), (64, 1273665), (76, 1072560), (80, 1018932), (82, 994080), (95, 858048), (96, 849110), (109, 747840), (114, 715040), (120, 679288), (123, 662720), (152, 536280), (160, 509466), (164, 497040), (190, 429024), (192, 424555), (205, 397632), (218, 373920), (228, 357520), (240, 339644), (246, 331360), (285, 286016), (304, 268140), (320, 254733), (327, 249280), (328, 248520), (380, 214512), (410, 198816), (436, 186960), (456, 178760), (480, 169822), (492, 165680), (545, 149568), (570, 143008), (608, 134070), (615, 132544), (654, 124640), (656, 124260), (760, 107256), (779, 104640), (820, 99408), (872, 93480), (912, 89380), (960, 84911), (984, 82840), (1090, 74784), (1140, 71504), (1216, 67035), (1230, 66272), (1308, 62320), (1312, 62130), (1520, 53628), (1558, 52320), (1635, 49856), (1640, 49704), (1744, 46740), (1824, 44690), (1968, 41420), (2071, 39360), (2180, 37392), (2280, 35752), (2337, 34880), (2460, 33136), (2616, 31160), (2624, 31065), (3040, 26814), (3116, 26160), (3270, 24928), (3280, 24852), (3488, 23370), (3648, 22345), (3895, 20928), (3936, 20710), (4142, 19680), (4360, 18696), (4469, 18240), (4560, 17876), (4674, 17440), (4920, 16568), (5232, 15580), (6080, 13407), (6213, 13120), (6232, 13080), (6540, 12464), (6560, 12426), (6976, 11685), (7790, 10464), (7872, 10355), (8284, 9840), (8720, 9348), (8938, 9120)]