20457871130

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^2\times {\mathrm{5407}}^1$

素因数の和:5631

約数の個数: 48

約数和(自身を含む): 37868373504

約数和(自身を除く): 17410502374

約数列:

[1, 2, 5, 10, 71, 73, 142, 146, 355, 365, 710, 730, 5183, 5329, 5407, 10366, 10658, 10814, 25915, 26645, 27035, 51830, 53290, 54070, 378359, 383897, 394711, 756718, 767794, 789422, 1891795, 1919485, 1973555, 3783590, 3838970, 3947110, 28024481, 28813903, 56048962, 57627806, 140122405, 144069515, 280244810, 288139030, 2045787113, 4091574226, 10228935565, 20457871130]

約数ペア:

[(1, 20457871130), (2, 10228935565), (5, 4091574226), (10, 2045787113), (71, 288139030), (73, 280244810), (142, 144069515), (146, 140122405), (355, 57627806), (365, 56048962), (710, 28813903), (730, 28024481), (5183, 3947110), (5329, 3838970), (5407, 3783590), (10366, 1973555), (10658, 1919485), (10814, 1891795), (25915, 789422), (26645, 767794), (27035, 756718), (51830, 394711), (53290, 383897), (54070, 378359)]