20883440

素因数分解:

$2^4\times 5^1\times {\mathrm{261043}}^1$

素因数の和:261056

約数の個数: 20

約数和(自身を含む): 48554184

約数和(自身を除く): 27670744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 261043, 522086, 1044172, 1305215, 2088344, 2610430, 4176688, 5220860, 10441720, 20883440]

約数ペア:

[(1, 20883440), (2, 10441720), (4, 5220860), (5, 4176688), (8, 2610430), (10, 2088344), (16, 1305215), (20, 1044172), (40, 522086), (80, 261043)]