20818404

素因数分解:

$2^2\times 3^3\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:99

約数の個数: 144

約数和(自身を含む): 61891200

約数和(自身を除く): 41072796

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 23, 27, 29, 34, 36, 46, 51, 54, 58, 68, 69, 87, 92, 102, 108, 116, 138, 153, 174, 204, 207, 261, 276, 289, 306, 348, 391, 414, 459, 493, 522, 578, 612, 621, 667, 782, 783, 828, 867, 918, 986, 1044, 1156, 1173, 1242, 1334, 1479, 1564, 1566, 1734, 1836, 1972, 2001, 2346, 2484, 2601, 2668, 2958, 3132, 3468, 3519, 4002, 4437, 4692, 5202, 5916, 6003, 6647, 7038, 7803, 8004, 8381, 8874, 10404, 10557, 11339, 12006, 13294, 13311, 14076, 15606, 16762, 17748, 18009, 19941, 21114, 22678, 24012, 25143, 26588, 26622, 31212, 33524, 34017, 36018, 39882, 42228, 45356, 50286, 53244, 59823, 68034, 72036, 75429, 79764, 100572, 102051, 119646, 136068, 150858, 179469, 192763, 204102, 226287, 239292, 301716, 306153, 358938, 385526, 408204, 452574, 578289, 612306, 717876, 771052, 905148, 1156578, 1224612, 1734867, 2313156, 3469734, 5204601, 6939468, 10409202, 20818404]

約数ペア:

[(1, 20818404), (2, 10409202), (3, 6939468), (4, 5204601), (6, 3469734), (9, 2313156), (12, 1734867), (17, 1224612), (18, 1156578), (23, 905148), (27, 771052), (29, 717876), (34, 612306), (36, 578289), (46, 452574), (51, 408204), (54, 385526), (58, 358938), (68, 306153), (69, 301716), (87, 239292), (92, 226287), (102, 204102), (108, 192763), (116, 179469), (138, 150858), (153, 136068), (174, 119646), (204, 102051), (207, 100572), (261, 79764), (276, 75429), (289, 72036), (306, 68034), (348, 59823), (391, 53244), (414, 50286), (459, 45356), (493, 42228), (522, 39882), (578, 36018), (612, 34017), (621, 33524), (667, 31212), (782, 26622), (783, 26588), (828, 25143), (867, 24012), (918, 22678), (986, 21114), (1044, 19941), (1156, 18009), (1173, 17748), (1242, 16762), (1334, 15606), (1479, 14076), (1564, 13311), (1566, 13294), (1734, 12006), (1836, 11339), (1972, 10557), (2001, 10404), (2346, 8874), (2484, 8381), (2601, 8004), (2668, 7803), (2958, 7038), (3132, 6647), (3468, 6003), (3519, 5916), (4002, 5202), (4437, 4692)]