1687120

素因数分解:

$2^4\times 5^1\times {\mathrm{21089}}^1$

素因数の和:21102

約数の個数: 20

約数和(自身を含む): 3922740

約数和(自身を除く): 2235620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 21089, 42178, 84356, 105445, 168712, 210890, 337424, 421780, 843560, 1687120]

約数ペア:

[(1, 1687120), (2, 843560), (4, 421780), (5, 337424), (8, 210890), (10, 168712), (16, 105445), (20, 84356), (40, 42178), (80, 21089)]