85881460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{613439}}^1$

素因数の和:613455

約数の個数: 24

約数和(自身を含む): 206115840

約数和(自身を除く): 120234380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 613439, 1226878, 2453756, 3067195, 4294073, 6134390, 8588146, 12268780, 17176292, 21470365, 42940730, 85881460]

約数ペア:

[(1, 85881460), (2, 42940730), (4, 21470365), (5, 17176292), (7, 12268780), (10, 8588146), (14, 6134390), (20, 4294073), (28, 3067195), (35, 2453756), (70, 1226878), (140, 613439)]