12988970

素因数分解:

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

素因数の和:662

約数の個数: 32

約数和(自身を含む): 24840000

約数和(自身を除く): 11851030

約数列:

[1, 2, 5, 10, 19, 38, 95, 137, 190, 274, 499, 685, 998, 1370, 2495, 2603, 4990, 5206, 9481, 13015, 18962, 26030, 47405, 68363, 94810, 136726, 341815, 683630, 1298897, 2597794, 6494485, 12988970]

約数ペア:

[(1, 12988970), (2, 6494485), (5, 2597794), (10, 1298897), (19, 683630), (38, 341815), (95, 136726), (137, 94810), (190, 68363), (274, 47405), (499, 26030), (685, 18962), (998, 13015), (1370, 9481), (2495, 5206), (2603, 4990)]