64476040

素因数分解:

$2^3\times 5^1\times {\mathrm{1611901}}^1$

素因数の和:1611912

約数の個数: 16

約数和(自身を含む): 145071180

約数和(自身を除く): 80595140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1611901, 3223802, 6447604, 8059505, 12895208, 16119010, 32238020, 64476040]

約数ペア:

[(1, 64476040), (2, 32238020), (4, 16119010), (5, 12895208), (8, 8059505), (10, 6447604), (20, 3223802), (40, 1611901)]