81947520

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{347}}^1$

素因数の和:413

約数の個数: 192

約数和(自身を含む): 290712240

約数和(自身を除く): 208764720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 41, 45, 48, 60, 64, 72, 80, 82, 90, 96, 120, 123, 128, 144, 160, 164, 180, 192, 205, 240, 246, 288, 320, 328, 347, 360, 369, 384, 410, 480, 492, 576, 615, 640, 656, 694, 720, 738, 820, 960, 984, 1041, 1152, 1230, 1312, 1388, 1440, 1476, 1640, 1735, 1845, 1920, 1968, 2082, 2460, 2624, 2776, 2880, 2952, 3123, 3280, 3470, 3690, 3936, 4164, 4920, 5205, 5248, 5552, 5760, 5904, 6246, 6560, 6940, 7380, 7872, 8328, 9840, 10410, 11104, 11808, 12492, 13120, 13880, 14227, 14760, 15615, 15744, 16656, 19680, 20820, 22208, 23616, 24984, 26240, 27760, 28454, 29520, 31230, 33312, 39360, 41640, 42681, 44416, 47232, 49968, 55520, 56908, 59040, 62460, 66624, 71135, 78720, 83280, 85362, 99936, 111040, 113816, 118080, 124920, 128043, 133248, 142270, 166560, 170724, 199872, 213405, 222080, 227632, 236160, 249840, 256086, 284540, 333120, 341448, 399744, 426810, 455264, 499680, 512172, 569080, 640215, 666240, 682896, 853620, 910528, 999360, 1024344, 1138160, 1280430, 1365792, 1707240, 1821056, 1998720, 2048688, 2276320, 2560860, 2731584, 3414480, 4097376, 4552640, 5121720, 5463168, 6828960, 8194752, 9105280, 10243440, 13657920, 16389504, 20486880, 27315840, 40973760, 81947520]

約数ペア:

[(1, 81947520), (2, 40973760), (3, 27315840), (4, 20486880), (5, 16389504), (6, 13657920), (8, 10243440), (9, 9105280), (10, 8194752), (12, 6828960), (15, 5463168), (16, 5121720), (18, 4552640), (20, 4097376), (24, 3414480), (30, 2731584), (32, 2560860), (36, 2276320), (40, 2048688), (41, 1998720), (45, 1821056), (48, 1707240), (60, 1365792), (64, 1280430), (72, 1138160), (80, 1024344), (82, 999360), (90, 910528), (96, 853620), (120, 682896), (123, 666240), (128, 640215), (144, 569080), (160, 512172), (164, 499680), (180, 455264), (192, 426810), (205, 399744), (240, 341448), (246, 333120), (288, 284540), (320, 256086), (328, 249840), (347, 236160), (360, 227632), (369, 222080), (384, 213405), (410, 199872), (480, 170724), (492, 166560), (576, 142270), (615, 133248), (640, 128043), (656, 124920), (694, 118080), (720, 113816), (738, 111040), (820, 99936), (960, 85362), (984, 83280), (1041, 78720), (1152, 71135), (1230, 66624), (1312, 62460), (1388, 59040), (1440, 56908), (1476, 55520), (1640, 49968), (1735, 47232), (1845, 44416), (1920, 42681), (1968, 41640), (2082, 39360), (2460, 33312), (2624, 31230), (2776, 29520), (2880, 28454), (2952, 27760), (3123, 26240), (3280, 24984), (3470, 23616), (3690, 22208), (3936, 20820), (4164, 19680), (4920, 16656), (5205, 15744), (5248, 15615), (5552, 14760), (5760, 14227), (5904, 13880), (6246, 13120), (6560, 12492), (6940, 11808), (7380, 11104), (7872, 10410), (8328, 9840)]