81296160

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:291

約数の個数: 192

約数和(自身を含む): 284135040

約数和(自身を除く): 202838880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 66, 80, 88, 89, 96, 110, 120, 132, 160, 165, 173, 176, 178, 220, 240, 264, 267, 330, 346, 352, 356, 440, 445, 480, 519, 528, 534, 660, 692, 712, 865, 880, 890, 979, 1038, 1056, 1068, 1320, 1335, 1384, 1424, 1730, 1760, 1780, 1903, 1958, 2076, 2136, 2595, 2640, 2670, 2768, 2848, 2937, 3460, 3560, 3806, 3916, 4152, 4272, 4895, 5190, 5280, 5340, 5536, 5709, 5874, 6920, 7120, 7612, 7832, 8304, 8544, 9515, 9790, 10380, 10680, 11418, 11748, 13840, 14240, 14685, 15224, 15397, 15664, 16608, 19030, 19580, 20760, 21360, 22836, 23496, 27680, 28545, 29370, 30448, 30794, 31328, 38060, 39160, 41520, 42720, 45672, 46191, 46992, 57090, 58740, 60896, 61588, 76120, 76985, 78320, 83040, 91344, 92382, 93984, 114180, 117480, 123176, 152240, 153970, 156640, 169367, 182688, 184764, 228360, 230955, 234960, 246352, 304480, 307940, 338734, 369528, 456720, 461910, 469920, 492704, 508101, 615880, 677468, 739056, 846835, 913440, 923820, 1016202, 1231760, 1354936, 1478112, 1693670, 1847640, 2032404, 2463520, 2540505, 2709872, 3387340, 3695280, 4064808, 5081010, 5419744, 6774680, 7390560, 8129616, 10162020, 13549360, 16259232, 20324040, 27098720, 40648080, 81296160]

約数ペア:

[(1, 81296160), (2, 40648080), (3, 27098720), (4, 20324040), (5, 16259232), (6, 13549360), (8, 10162020), (10, 8129616), (11, 7390560), (12, 6774680), (15, 5419744), (16, 5081010), (20, 4064808), (22, 3695280), (24, 3387340), (30, 2709872), (32, 2540505), (33, 2463520), (40, 2032404), (44, 1847640), (48, 1693670), (55, 1478112), (60, 1354936), (66, 1231760), (80, 1016202), (88, 923820), (89, 913440), (96, 846835), (110, 739056), (120, 677468), (132, 615880), (160, 508101), (165, 492704), (173, 469920), (176, 461910), (178, 456720), (220, 369528), (240, 338734), (264, 307940), (267, 304480), (330, 246352), (346, 234960), (352, 230955), (356, 228360), (440, 184764), (445, 182688), (480, 169367), (519, 156640), (528, 153970), (534, 152240), (660, 123176), (692, 117480), (712, 114180), (865, 93984), (880, 92382), (890, 91344), (979, 83040), (1038, 78320), (1056, 76985), (1068, 76120), (1320, 61588), (1335, 60896), (1384, 58740), (1424, 57090), (1730, 46992), (1760, 46191), (1780, 45672), (1903, 42720), (1958, 41520), (2076, 39160), (2136, 38060), (2595, 31328), (2640, 30794), (2670, 30448), (2768, 29370), (2848, 28545), (2937, 27680), (3460, 23496), (3560, 22836), (3806, 21360), (3916, 20760), (4152, 19580), (4272, 19030), (4895, 16608), (5190, 15664), (5280, 15397), (5340, 15224), (5536, 14685), (5709, 14240), (5874, 13840), (6920, 11748), (7120, 11418), (7612, 10680), (7832, 10380), (8304, 9790), (8544, 9515)]