18990350

素因数分解:

$2^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{8081}}^1$

素因数の和:8140

約数の個数: 24

約数和(自身を含む): 36078048

約数和(自身を除く): 17087698

約数列:

[1, 2, 5, 10, 25, 47, 50, 94, 235, 470, 1175, 2350, 8081, 16162, 40405, 80810, 202025, 379807, 404050, 759614, 1899035, 3798070, 9495175, 18990350]

約数ペア:

[(1, 18990350), (2, 9495175), (5, 3798070), (10, 1899035), (25, 759614), (47, 404050), (50, 379807), (94, 202025), (235, 80810), (470, 40405), (1175, 16162), (2350, 8081)]