487749820

素因数分解:

$2^2\times 5^1\times {\mathrm{1297}}^1\times {\mathrm{18803}}^1$

素因数の和:20109

約数の個数: 24

約数和(自身を含む): 1025118864

約数和(自身を除く): 537369044

約数列:

[1, 2, 4, 5, 10, 20, 1297, 2594, 5188, 6485, 12970, 18803, 25940, 37606, 75212, 94015, 188030, 376060, 24387491, 48774982, 97549964, 121937455, 243874910, 487749820]

約数ペア:

[(1, 487749820), (2, 243874910), (4, 121937455), (5, 97549964), (10, 48774982), (20, 24387491), (1297, 376060), (2594, 188030), (5188, 94015), (6485, 75212), (12970, 37606), (18803, 25940)]