81590880

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{3469}}^1$

素因数の和:3501

約数の個数: 144

約数和(自身を含む): 299058480

約数和(自身を除く): 217467600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 840, 980, 1120, 1176, 1470, 1568, 1680, 1960, 2352, 2940, 3360, 3469, 3920, 4704, 5880, 6938, 7840, 10407, 11760, 13876, 17345, 20814, 23520, 24283, 27752, 34690, 41628, 48566, 52035, 55504, 69380, 72849, 83256, 97132, 104070, 111008, 121415, 138760, 145698, 166512, 169981, 194264, 208140, 242830, 277520, 291396, 333024, 339962, 364245, 388528, 416280, 485660, 509943, 555040, 582792, 679924, 728490, 777056, 832560, 849905, 971320, 1019886, 1165584, 1359848, 1456980, 1665120, 1699810, 1942640, 2039772, 2331168, 2549715, 2719696, 2913960, 3399620, 3885280, 4079544, 5099430, 5439392, 5827920, 6799240, 8159088, 10198860, 11655840, 13598480, 16318176, 20397720, 27196960, 40795440, 81590880]

約数ペア:

[(1, 81590880), (2, 40795440), (3, 27196960), (4, 20397720), (5, 16318176), (6, 13598480), (7, 11655840), (8, 10198860), (10, 8159088), (12, 6799240), (14, 5827920), (15, 5439392), (16, 5099430), (20, 4079544), (21, 3885280), (24, 3399620), (28, 2913960), (30, 2719696), (32, 2549715), (35, 2331168), (40, 2039772), (42, 1942640), (48, 1699810), (49, 1665120), (56, 1456980), (60, 1359848), (70, 1165584), (80, 1019886), (84, 971320), (96, 849905), (98, 832560), (105, 777056), (112, 728490), (120, 679924), (140, 582792), (147, 555040), (160, 509943), (168, 485660), (196, 416280), (210, 388528), (224, 364245), (240, 339962), (245, 333024), (280, 291396), (294, 277520), (336, 242830), (392, 208140), (420, 194264), (480, 169981), (490, 166512), (560, 145698), (588, 138760), (672, 121415), (735, 111008), (784, 104070), (840, 97132), (980, 83256), (1120, 72849), (1176, 69380), (1470, 55504), (1568, 52035), (1680, 48566), (1960, 41628), (2352, 34690), (2940, 27752), (3360, 24283), (3469, 23520), (3920, 20814), (4704, 17345), (5880, 13876), (6938, 11760), (7840, 10407)]