19875391732

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1\times {\mathrm{311}}^2$

素因数の和:853

約数の個数: 72

約数和(自身を含む): 41079890880

約数和(自身を除く): 21204499148

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 179, 287, 311, 358, 574, 622, 716, 1148, 1244, 1253, 2177, 2506, 4354, 5012, 7339, 8708, 12751, 14678, 25502, 29356, 51004, 51373, 55669, 89257, 96721, 102746, 111338, 178514, 193442, 205492, 222676, 357028, 386884, 389683, 677047, 779366, 1354094, 1558732, 2282429, 2708188, 3965561, 4564858, 7931122, 9129716, 15862244, 15977003, 17313059, 27758927, 31954006, 34626118, 55517854, 63908012, 69252236, 111035708, 121191413, 242382826, 484765652, 709835419, 1419670838, 2839341676, 4968847933, 9937695866, 19875391732]

約数ペア:

[(1, 19875391732), (2, 9937695866), (4, 4968847933), (7, 2839341676), (14, 1419670838), (28, 709835419), (41, 484765652), (82, 242382826), (164, 121191413), (179, 111035708), (287, 69252236), (311, 63908012), (358, 55517854), (574, 34626118), (622, 31954006), (716, 27758927), (1148, 17313059), (1244, 15977003), (1253, 15862244), (2177, 9129716), (2506, 7931122), (4354, 4564858), (5012, 3965561), (7339, 2708188), (8708, 2282429), (12751, 1558732), (14678, 1354094), (25502, 779366), (29356, 677047), (51004, 389683), (51373, 386884), (55669, 357028), (89257, 222676), (96721, 205492), (102746, 193442), (111338, 178514)]