80904115

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1\times {\mathrm{647}}^1$

素因数の和:1022

約数の個数: 16

約数和(自身を含む): 98677440

約数和(自身を除く): 17773325

約数列:

[1, 5, 89, 281, 445, 647, 1405, 3235, 25009, 57583, 125045, 181807, 287915, 909035, 16180823, 80904115]

約数ペア:

[(1, 80904115), (5, 16180823), (89, 909035), (281, 287915), (445, 181807), (647, 125045), (1405, 57583), (3235, 25009)]