15991135

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{449}}^1$

素因数の和:890

約数の個数: 16

約数和(自身を含む): 20412000

約数和(自身を除く): 4420865

約数列:

[1, 5, 17, 85, 419, 449, 2095, 2245, 7123, 7633, 35615, 38165, 188131, 940655, 3198227, 15991135]

約数ペア:

[(1, 15991135), (5, 3198227), (17, 940655), (85, 188131), (419, 38165), (449, 35615), (2095, 7633), (2245, 7123)]