81381552

素因数分解:

$2^4\times 3^1\times 7^3\times {\mathrm{4943}}^1$

素因数の和:4975

約数の個数: 80

約数和(自身を含む): 245222400

約数和(自身を除く): 163840848

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 49, 56, 84, 98, 112, 147, 168, 196, 294, 336, 343, 392, 588, 686, 784, 1029, 1176, 1372, 2058, 2352, 2744, 4116, 4943, 5488, 8232, 9886, 14829, 16464, 19772, 29658, 34601, 39544, 59316, 69202, 79088, 103803, 118632, 138404, 207606, 237264, 242207, 276808, 415212, 484414, 553616, 726621, 830424, 968828, 1453242, 1660848, 1695449, 1937656, 2906484, 3390898, 3875312, 5086347, 5812968, 6781796, 10172694, 11625936, 13563592, 20345388, 27127184, 40690776, 81381552]

約数ペア:

[(1, 81381552), (2, 40690776), (3, 27127184), (4, 20345388), (6, 13563592), (7, 11625936), (8, 10172694), (12, 6781796), (14, 5812968), (16, 5086347), (21, 3875312), (24, 3390898), (28, 2906484), (42, 1937656), (48, 1695449), (49, 1660848), (56, 1453242), (84, 968828), (98, 830424), (112, 726621), (147, 553616), (168, 484414), (196, 415212), (294, 276808), (336, 242207), (343, 237264), (392, 207606), (588, 138404), (686, 118632), (784, 103803), (1029, 79088), (1176, 69202), (1372, 59316), (2058, 39544), (2352, 34601), (2744, 29658), (4116, 19772), (4943, 16464), (5488, 14829), (8232, 9886)]