218959728

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{20641}}^1$

素因数の和:20682

約数の個数: 80

約数和(自身を含む): 645021216

約数和(自身を除く): 426061488

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 17, 24, 26, 34, 39, 48, 51, 52, 68, 78, 102, 104, 136, 156, 204, 208, 221, 272, 312, 408, 442, 624, 663, 816, 884, 1326, 1768, 2652, 3536, 5304, 10608, 20641, 41282, 61923, 82564, 123846, 165128, 247692, 268333, 330256, 350897, 495384, 536666, 701794, 804999, 990768, 1052691, 1073332, 1403588, 1609998, 2105382, 2146664, 2807176, 3219996, 4210764, 4293328, 4561661, 5614352, 6439992, 8421528, 9123322, 12879984, 13684983, 16843056, 18246644, 27369966, 36493288, 54739932, 72986576, 109479864, 218959728]

約数ペア:

[(1, 218959728), (2, 109479864), (3, 72986576), (4, 54739932), (6, 36493288), (8, 27369966), (12, 18246644), (13, 16843056), (16, 13684983), (17, 12879984), (24, 9123322), (26, 8421528), (34, 6439992), (39, 5614352), (48, 4561661), (51, 4293328), (52, 4210764), (68, 3219996), (78, 2807176), (102, 2146664), (104, 2105382), (136, 1609998), (156, 1403588), (204, 1073332), (208, 1052691), (221, 990768), (272, 804999), (312, 701794), (408, 536666), (442, 495384), (624, 350897), (663, 330256), (816, 268333), (884, 247692), (1326, 165128), (1768, 123846), (2652, 82564), (3536, 61923), (5304, 41282), (10608, 20641)]