38902040

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1949}}^1$

素因数の和:2459

約数の個数: 32

約数和(自身を含む): 87750000

約数和(自身を除く): 48847960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1949, 1996, 2495, 3898, 3992, 4990, 7796, 9745, 9980, 15592, 19490, 19960, 38980, 77960, 972551, 1945102, 3890204, 4862755, 7780408, 9725510, 19451020, 38902040]

約数ペア:

[(1, 38902040), (2, 19451020), (4, 9725510), (5, 7780408), (8, 4862755), (10, 3890204), (20, 1945102), (40, 972551), (499, 77960), (998, 38980), (1949, 19960), (1996, 19490), (2495, 15592), (3898, 9980), (3992, 9745), (4990, 7796)]