289331390

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{407509}}^1$

素因数の和:407587

約数の個数: 16

約数和(自身を含む): 528132960

約数和(自身を除く): 238801570

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 407509, 815018, 2037545, 4075090, 28933139, 57866278, 144665695, 289331390]

約数ペア:

[(1, 289331390), (2, 144665695), (5, 57866278), (10, 28933139), (71, 4075090), (142, 2037545), (355, 815018), (710, 407509)]