20655888

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:141

約数の個数: 160

約数和(自身を含む): 64281600

約数和(自身を除く): 43625712

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 19, 22, 24, 29, 33, 38, 44, 48, 57, 58, 66, 71, 76, 87, 88, 114, 116, 132, 142, 152, 174, 176, 209, 213, 228, 232, 264, 284, 304, 319, 348, 418, 426, 456, 464, 528, 551, 568, 627, 638, 696, 781, 836, 852, 912, 957, 1102, 1136, 1254, 1276, 1349, 1392, 1562, 1653, 1672, 1704, 1914, 2059, 2204, 2343, 2508, 2552, 2698, 3124, 3306, 3344, 3408, 3828, 4047, 4118, 4408, 4686, 5016, 5104, 5396, 6061, 6177, 6248, 6612, 7656, 8094, 8236, 8816, 9372, 10032, 10792, 12122, 12354, 12496, 13224, 14839, 15312, 16188, 16472, 18183, 18744, 21584, 22649, 24244, 24708, 26448, 29678, 32376, 32944, 36366, 37488, 39121, 44517, 45298, 48488, 49416, 59356, 64752, 67947, 72732, 78242, 89034, 90596, 96976, 98832, 117363, 118712, 135894, 145464, 156484, 178068, 181192, 234726, 237424, 271788, 290928, 312968, 356136, 362384, 430331, 469452, 543576, 625936, 712272, 860662, 938904, 1087152, 1290993, 1721324, 1877808, 2581986, 3442648, 5163972, 6885296, 10327944, 20655888]

約数ペア:

[(1, 20655888), (2, 10327944), (3, 6885296), (4, 5163972), (6, 3442648), (8, 2581986), (11, 1877808), (12, 1721324), (16, 1290993), (19, 1087152), (22, 938904), (24, 860662), (29, 712272), (33, 625936), (38, 543576), (44, 469452), (48, 430331), (57, 362384), (58, 356136), (66, 312968), (71, 290928), (76, 271788), (87, 237424), (88, 234726), (114, 181192), (116, 178068), (132, 156484), (142, 145464), (152, 135894), (174, 118712), (176, 117363), (209, 98832), (213, 96976), (228, 90596), (232, 89034), (264, 78242), (284, 72732), (304, 67947), (319, 64752), (348, 59356), (418, 49416), (426, 48488), (456, 45298), (464, 44517), (528, 39121), (551, 37488), (568, 36366), (627, 32944), (638, 32376), (696, 29678), (781, 26448), (836, 24708), (852, 24244), (912, 22649), (957, 21584), (1102, 18744), (1136, 18183), (1254, 16472), (1276, 16188), (1349, 15312), (1392, 14839), (1562, 13224), (1653, 12496), (1672, 12354), (1704, 12122), (1914, 10792), (2059, 10032), (2204, 9372), (2343, 8816), (2508, 8236), (2552, 8094), (2698, 7656), (3124, 6612), (3306, 6248), (3344, 6177), (3408, 6061), (3828, 5396), (4047, 5104), (4118, 5016), (4408, 4686)]