205090700

素因数分解:

$2^2\times 5^2\times {\mathrm{491}}^1\times {\mathrm{4177}}^1$

素因数の和:4682

約数の個数: 36

約数和(自身を含む): 446059992

約数和(自身を除く): 240969292

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 491, 982, 1964, 2455, 4177, 4910, 8354, 9820, 12275, 16708, 20885, 24550, 41770, 49100, 83540, 104425, 208850, 417700, 2050907, 4101814, 8203628, 10254535, 20509070, 41018140, 51272675, 102545350, 205090700]

約数ペア:

[(1, 205090700), (2, 102545350), (4, 51272675), (5, 41018140), (10, 20509070), (20, 10254535), (25, 8203628), (50, 4101814), (100, 2050907), (491, 417700), (982, 208850), (1964, 104425), (2455, 83540), (4177, 49100), (4910, 41770), (8354, 24550), (9820, 20885), (12275, 16708)]