123955760

素因数分解:

$2^4\times 5^1\times {\mathrm{1549447}}^1$

素因数の和:1549460

約数の個数: 20

約数和(自身を含む): 288197328

約数和(自身を除く): 164241568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1549447, 3098894, 6197788, 7747235, 12395576, 15494470, 24791152, 30988940, 61977880, 123955760]

約数ペア:

[(1, 123955760), (2, 61977880), (4, 30988940), (5, 24791152), (8, 15494470), (10, 12395576), (16, 7747235), (20, 6197788), (40, 3098894), (80, 1549447)]