42507280

素因数分解:

$2^4\times 5^1\times {\mathrm{719}}^1\times {\mathrm{739}}^1$

素因数の和:1471

約数の個数: 40

約数和(自身を含む): 99100800

約数和(自身を除く): 56593520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 719, 739, 1438, 1478, 2876, 2956, 3595, 3695, 5752, 5912, 7190, 7390, 11504, 11824, 14380, 14780, 28760, 29560, 57520, 59120, 531341, 1062682, 2125364, 2656705, 4250728, 5313410, 8501456, 10626820, 21253640, 42507280]

約数ペア:

[(1, 42507280), (2, 21253640), (4, 10626820), (5, 8501456), (8, 5313410), (10, 4250728), (16, 2656705), (20, 2125364), (40, 1062682), (80, 531341), (719, 59120), (739, 57520), (1438, 29560), (1478, 28760), (2876, 14780), (2956, 14380), (3595, 11824), (3695, 11504), (5752, 7390), (5912, 7190)]