51955880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{499}}^1$

素因数の和:666

約数の個数: 64

約数和(自身を含む): 124200000

約数和(自身を除く): 72244120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 137, 152, 190, 274, 380, 499, 548, 685, 760, 998, 1096, 1370, 1996, 2495, 2603, 2740, 3992, 4990, 5206, 5480, 9481, 9980, 10412, 13015, 18962, 19960, 20824, 26030, 37924, 47405, 52060, 68363, 75848, 94810, 104120, 136726, 189620, 273452, 341815, 379240, 546904, 683630, 1298897, 1367260, 2597794, 2734520, 5195588, 6494485, 10391176, 12988970, 25977940, 51955880]

約数ペア:

[(1, 51955880), (2, 25977940), (4, 12988970), (5, 10391176), (8, 6494485), (10, 5195588), (19, 2734520), (20, 2597794), (38, 1367260), (40, 1298897), (76, 683630), (95, 546904), (137, 379240), (152, 341815), (190, 273452), (274, 189620), (380, 136726), (499, 104120), (548, 94810), (685, 75848), (760, 68363), (998, 52060), (1096, 47405), (1370, 37924), (1996, 26030), (2495, 20824), (2603, 19960), (2740, 18962), (3992, 13015), (4990, 10412), (5206, 9980), (5480, 9481)]