81653760

素因数分解:

$2^{12}\times 3^2\times 5^1\times {\mathrm{443}}^1$

素因数の和:478

約数の個数: 156

約数和(自身を含む): 283670712

約数和(自身を除く): 202016952

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, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 443, 480, 512, 576, 640, 720, 768, 886, 960, 1024, 1152, 1280, 1329, 1440, 1536, 1772, 1920, 2048, 2215, 2304, 2560, 2658, 2880, 3072, 3544, 3840, 3987, 4096, 4430, 4608, 5120, 5316, 5760, 6144, 6645, 7088, 7680, 7974, 8860, 9216, 10240, 10632, 11520, 12288, 13290, 14176, 15360, 15948, 17720, 18432, 19935, 20480, 21264, 23040, 26580, 28352, 30720, 31896, 35440, 36864, 39870, 42528, 46080, 53160, 56704, 61440, 63792, 70880, 79740, 85056, 92160, 106320, 113408, 127584, 141760, 159480, 170112, 184320, 212640, 226816, 255168, 283520, 318960, 340224, 425280, 453632, 510336, 567040, 637920, 680448, 850560, 907264, 1020672, 1134080, 1275840, 1360896, 1701120, 1814528, 2041344, 2268160, 2551680, 2721792, 3402240, 4082688, 4536320, 5103360, 5443584, 6804480, 8165376, 9072640, 10206720, 13608960, 16330752, 20413440, 27217920, 40826880, 81653760]

約数ペア:

[(1, 81653760), (2, 40826880), (3, 27217920), (4, 20413440), (5, 16330752), (6, 13608960), (8, 10206720), (9, 9072640), (10, 8165376), (12, 6804480), (15, 5443584), (16, 5103360), (18, 4536320), (20, 4082688), (24, 3402240), (30, 2721792), (32, 2551680), (36, 2268160), (40, 2041344), (45, 1814528), (48, 1701120), (60, 1360896), (64, 1275840), (72, 1134080), (80, 1020672), (90, 907264), (96, 850560), (120, 680448), (128, 637920), (144, 567040), (160, 510336), (180, 453632), (192, 425280), (240, 340224), (256, 318960), (288, 283520), (320, 255168), (360, 226816), (384, 212640), (443, 184320), (480, 170112), (512, 159480), (576, 141760), (640, 127584), (720, 113408), (768, 106320), (886, 92160), (960, 85056), (1024, 79740), (1152, 70880), (1280, 63792), (1329, 61440), (1440, 56704), (1536, 53160), (1772, 46080), (1920, 42528), (2048, 39870), (2215, 36864), (2304, 35440), (2560, 31896), (2658, 30720), (2880, 28352), (3072, 26580), (3544, 23040), (3840, 21264), (3987, 20480), (4096, 19935), (4430, 18432), (4608, 17720), (5120, 15948), (5316, 15360), (5760, 14176), (6144, 13290), (6645, 12288), (7088, 11520), (7680, 10632), (7974, 10240), (8860, 9216)]