664480

素因数分解:

$2^5\times 5^1\times {\mathrm{4153}}^1$

素因数の和:4168

約数の個数: 24

約数和(自身を含む): 1570212

約数和(自身を除く): 905732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 4153, 8306, 16612, 20765, 33224, 41530, 66448, 83060, 132896, 166120, 332240, 664480]

約数ペア:

[(1, 664480), (2, 332240), (4, 166120), (5, 132896), (8, 83060), (10, 66448), (16, 41530), (20, 33224), (32, 20765), (40, 16612), (80, 8306), (160, 4153)]