20457490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107671}}^1$

素因数の和:107697

約数の個数: 16

約数和(自身を含む): 38761920

約数和(自身を除く): 18304430

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 107671, 215342, 538355, 1076710, 2045749, 4091498, 10228745, 20457490]

約数ペア:

[(1, 20457490), (2, 10228745), (5, 4091498), (10, 2045749), (19, 1076710), (38, 538355), (95, 215342), (190, 107671)]