28681145

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1\times {\mathrm{887}}^1$

素因数の和:1144

約数の個数: 16

約数和(自身を含む): 35804160

約数和(自身を除く): 7123015

約数列:

[1, 5, 29, 145, 223, 887, 1115, 4435, 6467, 25723, 32335, 128615, 197801, 989005, 5736229, 28681145]

約数ペア:

[(1, 28681145), (5, 5736229), (29, 989005), (145, 197801), (223, 128615), (887, 32335), (1115, 25723), (4435, 6467)]