620778820

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{660403}}^1$

素因数の和:660459

約数の個数: 24

約数和(自身を含む): 1331374464

約数和(自身を除く): 710595644

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 660403, 1320806, 2641612, 3302015, 6604030, 13208060, 31038941, 62077882, 124155764, 155194705, 310389410, 620778820]

約数ペア:

[(1, 620778820), (2, 310389410), (4, 155194705), (5, 124155764), (10, 62077882), (20, 31038941), (47, 13208060), (94, 6604030), (188, 3302015), (235, 2641612), (470, 1320806), (940, 660403)]