20858200

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1$

素因数の和:545

約数の個数: 96

約数和(自身を含む): 55800000

約数和(自身を除く): 34941800

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 25, 38, 40, 44, 50, 55, 76, 88, 95, 100, 110, 152, 190, 200, 209, 220, 275, 380, 418, 440, 475, 499, 550, 760, 836, 950, 998, 1045, 1100, 1672, 1900, 1996, 2090, 2200, 2495, 3800, 3992, 4180, 4990, 5225, 5489, 8360, 9481, 9980, 10450, 10978, 12475, 18962, 19960, 20900, 21956, 24950, 27445, 37924, 41800, 43912, 47405, 49900, 54890, 75848, 94810, 99800, 104291, 109780, 137225, 189620, 208582, 219560, 237025, 274450, 379240, 417164, 474050, 521455, 548900, 834328, 948100, 1042910, 1097800, 1896200, 2085820, 2607275, 4171640, 5214550, 10429100, 20858200]

約数ペア:

[(1, 20858200), (2, 10429100), (4, 5214550), (5, 4171640), (8, 2607275), (10, 2085820), (11, 1896200), (19, 1097800), (20, 1042910), (22, 948100), (25, 834328), (38, 548900), (40, 521455), (44, 474050), (50, 417164), (55, 379240), (76, 274450), (88, 237025), (95, 219560), (100, 208582), (110, 189620), (152, 137225), (190, 109780), (200, 104291), (209, 99800), (220, 94810), (275, 75848), (380, 54890), (418, 49900), (440, 47405), (475, 43912), (499, 41800), (550, 37924), (760, 27445), (836, 24950), (950, 21956), (998, 20900), (1045, 19960), (1100, 18962), (1672, 12475), (1900, 10978), (1996, 10450), (2090, 9980), (2200, 9481), (2495, 8360), (3800, 5489), (3992, 5225), (4180, 4990)]