39940460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{285289}}^1$

素因数の和:285305

約数の個数: 24

約数和(自身を含む): 95857440

約数和(自身を除く): 55916980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 285289, 570578, 1141156, 1426445, 1997023, 2852890, 3994046, 5705780, 7988092, 9985115, 19970230, 39940460]

約数ペア:

[(1, 39940460), (2, 19970230), (4, 9985115), (5, 7988092), (7, 5705780), (10, 3994046), (14, 2852890), (20, 1997023), (28, 1426445), (35, 1141156), (70, 570578), (140, 285289)]