209901820

素因数分解:

$2^2\times 5^1\times {\mathrm{1447}}^1\times {\mathrm{7253}}^1$

素因数の和:8709

約数の個数: 24

約数和(自身を含む): 441159264

約数和(自身を除く): 231257444

約数列:

[1, 2, 4, 5, 10, 20, 1447, 2894, 5788, 7235, 7253, 14470, 14506, 28940, 29012, 36265, 72530, 145060, 10495091, 20990182, 41980364, 52475455, 104950910, 209901820]

約数ペア:

[(1, 209901820), (2, 104950910), (4, 52475455), (5, 41980364), (10, 20990182), (20, 10495091), (1447, 145060), (2894, 72530), (5788, 36265), (7235, 29012), (7253, 28940), (14470, 14506)]