64478620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{189643}}^1$

素因数の和:189669

約数の個数: 24

約数和(自身を含む): 143370864

約数和(自身を除く): 78892244

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 189643, 379286, 758572, 948215, 1896430, 3223931, 3792860, 6447862, 12895724, 16119655, 32239310, 64478620]

約数ペア:

[(1, 64478620), (2, 32239310), (4, 16119655), (5, 12895724), (10, 6447862), (17, 3792860), (20, 3223931), (34, 1896430), (68, 948215), (85, 758572), (170, 379286), (340, 189643)]