20706940

素因数分解:

$2^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{4561}}^1$

素因数の和:4797

約数の個数: 24

約数和(自身を含む): 43685712

約数和(自身を除く): 22978772

約数列:

[1, 2, 4, 5, 10, 20, 227, 454, 908, 1135, 2270, 4540, 4561, 9122, 18244, 22805, 45610, 91220, 1035347, 2070694, 4141388, 5176735, 10353470, 20706940]

約数ペア:

[(1, 20706940), (2, 10353470), (4, 5176735), (5, 4141388), (10, 2070694), (20, 1035347), (227, 91220), (454, 45610), (908, 22805), (1135, 18244), (2270, 9122), (4540, 4561)]