20761452

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1$

素因数の和:395

約数の個数: 72

約数和(自身を含む): 55910400

約数和(自身を除く): 35148948

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 127, 171, 228, 239, 254, 342, 381, 478, 508, 684, 717, 762, 956, 1143, 1434, 1524, 2151, 2286, 2413, 2868, 4302, 4541, 4572, 4826, 7239, 8604, 9082, 9652, 13623, 14478, 18164, 21717, 27246, 28956, 30353, 40869, 43434, 54492, 60706, 81738, 86868, 91059, 121412, 163476, 182118, 273177, 364236, 546354, 576707, 1092708, 1153414, 1730121, 2306828, 3460242, 5190363, 6920484, 10380726, 20761452]

約数ペア:

[(1, 20761452), (2, 10380726), (3, 6920484), (4, 5190363), (6, 3460242), (9, 2306828), (12, 1730121), (18, 1153414), (19, 1092708), (36, 576707), (38, 546354), (57, 364236), (76, 273177), (114, 182118), (127, 163476), (171, 121412), (228, 91059), (239, 86868), (254, 81738), (342, 60706), (381, 54492), (478, 43434), (508, 40869), (684, 30353), (717, 28956), (762, 27246), (956, 21717), (1143, 18164), (1434, 14478), (1524, 13623), (2151, 9652), (2286, 9082), (2413, 8604), (2868, 7239), (4302, 4826), (4541, 4572)]