38942840

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{10939}}^1$

素因数の和:11039

約数の個数: 32

約数和(自身を含む): 88614000

約数和(自身を除く): 49671160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 10939, 21878, 43756, 54695, 87512, 109390, 218780, 437560, 973571, 1947142, 3894284, 4867855, 7788568, 9735710, 19471420, 38942840]

約数ペア:

[(1, 38942840), (2, 19471420), (4, 9735710), (5, 7788568), (8, 4867855), (10, 3894284), (20, 1947142), (40, 973571), (89, 437560), (178, 218780), (356, 109390), (445, 87512), (712, 54695), (890, 43756), (1780, 21878), (3560, 10939)]