20509150

素因数分解:

$2^1\times 5^2\times {\mathrm{173}}^1\times {\mathrm{2371}}^1$

素因数の和:2556

約数の個数: 24

約数和(自身を含む): 38383704

約数和(自身を除く): 17874554

約数列:

[1, 2, 5, 10, 25, 50, 173, 346, 865, 1730, 2371, 4325, 4742, 8650, 11855, 23710, 59275, 118550, 410183, 820366, 2050915, 4101830, 10254575, 20509150]

約数ペア:

[(1, 20509150), (2, 10254575), (5, 4101830), (10, 2050915), (25, 820366), (50, 410183), (173, 118550), (346, 59275), (865, 23710), (1730, 11855), (2371, 8650), (4325, 4742)]