1380491980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{9860657}}^1$

素因数の和:9860673

約数の個数: 24

約数和(自身を含む): 3313181088

約数和(自身を除く): 1932689108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 9860657, 19721314, 39442628, 49303285, 69024599, 98606570, 138049198, 197213140, 276098396, 345122995, 690245990, 1380491980]

約数ペア:

[(1, 1380491980), (2, 690245990), (4, 345122995), (5, 276098396), (7, 197213140), (10, 138049198), (14, 98606570), (20, 69024599), (28, 49303285), (35, 39442628), (70, 19721314), (140, 9860657)]