15955760

素因数分解:

$2^4\times 5^1\times {\mathrm{199447}}^1$

素因数の和:199460

約数の個数: 20

約数和(自身を含む): 37097328

約数和(自身を除く): 21141568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199447, 398894, 797788, 997235, 1595576, 1994470, 3191152, 3988940, 7977880, 15955760]

約数ペア:

[(1, 15955760), (2, 7977880), (4, 3988940), (5, 3191152), (8, 1994470), (10, 1595576), (16, 997235), (20, 797788), (40, 398894), (80, 199447)]