20806120

素因数分解:

$2^3\times 5^1\times {\mathrm{347}}^1\times {\mathrm{1499}}^1$

素因数の和:1857

約数の個数: 32

約数和(自身を含む): 46980000

約数和(自身を除く): 26173880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 347, 694, 1388, 1499, 1735, 2776, 2998, 3470, 5996, 6940, 7495, 11992, 13880, 14990, 29980, 59960, 520153, 1040306, 2080612, 2600765, 4161224, 5201530, 10403060, 20806120]

約数ペア:

[(1, 20806120), (2, 10403060), (4, 5201530), (5, 4161224), (8, 2600765), (10, 2080612), (20, 1040306), (40, 520153), (347, 59960), (694, 29980), (1388, 14990), (1499, 13880), (1735, 11992), (2776, 7495), (2998, 6940), (3470, 5996)]