1389788230

素因数分解:

$2^1\times 5^1\times {\mathrm{317}}^1\times {\mathrm{438419}}^1$

素因数の和:438743

約数の個数: 16

約数和(自身を含む): 2509516080

約数和(自身を除く): 1119727850

約数列:

[1, 2, 5, 10, 317, 634, 1585, 3170, 438419, 876838, 2192095, 4384190, 138978823, 277957646, 694894115, 1389788230]

約数ペア:

[(1, 1389788230), (2, 694894115), (5, 277957646), (10, 138978823), (317, 4384190), (634, 2192095), (1585, 876838), (3170, 438419)]