28369115

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{509}}^1$

素因数の和:742

約数の個数: 16

約数和(自身を含む): 34810560

約数和(自身を除く): 6441445

約数列:

[1, 5, 71, 157, 355, 509, 785, 2545, 11147, 36139, 55735, 79913, 180695, 399565, 5673823, 28369115]

約数ペア:

[(1, 28369115), (5, 5673823), (71, 399565), (157, 180695), (355, 79913), (509, 55735), (785, 36139), (2545, 11147)]