28217890

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{479}}^1$

素因数の和:666

約数の個数: 32

約数和(自身を含む): 52462080

約数和(自身を除く): 24244190

約数列:

[1, 2, 5, 10, 43, 86, 137, 215, 274, 430, 479, 685, 958, 1370, 2395, 4790, 5891, 11782, 20597, 29455, 41194, 58910, 65623, 102985, 131246, 205970, 328115, 656230, 2821789, 5643578, 14108945, 28217890]

約数ペア:

[(1, 28217890), (2, 14108945), (5, 5643578), (10, 2821789), (43, 656230), (86, 328115), (137, 205970), (215, 131246), (274, 102985), (430, 65623), (479, 58910), (685, 41194), (958, 29455), (1370, 20597), (2395, 11782), (4790, 5891)]