28149985

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{353}}^1\times {\mathrm{389}}^1$

素因数の和:788

約数の個数: 16

約数和(自身を含む): 34791120

約数和(自身を除く): 6641135

約数列:

[1, 5, 41, 205, 353, 389, 1765, 1945, 14473, 15949, 72365, 79745, 137317, 686585, 5629997, 28149985]

約数ペア:

[(1, 28149985), (5, 5629997), (41, 686585), (205, 137317), (353, 79745), (389, 72365), (1765, 15949), (1945, 14473)]