290436040

素因数分解:

$2^3\times 5^1\times {\mathrm{7260901}}^1$

素因数の和:7260912

約数の個数: 16

約数和(自身を含む): 653481180

約数和(自身を除く): 363045140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 7260901, 14521802, 29043604, 36304505, 58087208, 72609010, 145218020, 290436040]

約数ペア:

[(1, 290436040), (2, 145218020), (4, 72609010), (5, 58087208), (8, 36304505), (10, 29043604), (20, 14521802), (40, 7260901)]