19490420

素因数分解:

$2^2\times 5^1\times {\mathrm{929}}^1\times {\mathrm{1049}}^1$

素因数の和:1987

約数の個数: 24

約数和(自身を含む): 41013000

約数和(自身を除く): 21522580

約数列:

[1, 2, 4, 5, 10, 20, 929, 1049, 1858, 2098, 3716, 4196, 4645, 5245, 9290, 10490, 18580, 20980, 974521, 1949042, 3898084, 4872605, 9745210, 19490420]

約数ペア:

[(1, 19490420), (2, 9745210), (4, 4872605), (5, 3898084), (10, 1949042), (20, 974521), (929, 20980), (1049, 18580), (1858, 10490), (2098, 9290), (3716, 5245), (4196, 4645)]