20820940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{148721}}^1$

素因数の和:148737

約数の個数: 24

約数和(自身を含む): 49970592

約数和(自身を除く): 29149652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 148721, 297442, 594884, 743605, 1041047, 1487210, 2082094, 2974420, 4164188, 5205235, 10410470, 20820940]

約数ペア:

[(1, 20820940), (2, 10410470), (4, 5205235), (5, 4164188), (7, 2974420), (10, 2082094), (14, 1487210), (20, 1041047), (28, 743605), (35, 594884), (70, 297442), (140, 148721)]