12690895

素因数分解:

$5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5107}}^1$

素因数の和:5190

約数の個数: 16

約数和(自身を含む): 17653248

約数和(自身を除く): 4962353

約数列:

[1, 5, 7, 35, 71, 355, 497, 2485, 5107, 25535, 35749, 178745, 362597, 1812985, 2538179, 12690895]

約数ペア:

[(1, 12690895), (5, 2538179), (7, 1812985), (35, 362597), (71, 178745), (355, 35749), (497, 25535), (2485, 5107)]