19903390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{541}}^1$

素因数の和:844

約数の個数: 32

約数和(自身を含む): 38789856

約数和(自身を除く): 18886466

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 283, 541, 566, 1082, 1415, 2705, 2830, 3679, 5410, 7033, 7358, 14066, 18395, 35165, 36790, 70330, 153103, 306206, 765515, 1531030, 1990339, 3980678, 9951695, 19903390]

約数ペア:

[(1, 19903390), (2, 9951695), (5, 3980678), (10, 1990339), (13, 1531030), (26, 765515), (65, 306206), (130, 153103), (283, 70330), (541, 36790), (566, 35165), (1082, 18395), (1415, 14066), (2705, 7358), (2830, 7033), (3679, 5410)]