3900220

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1021}}^1$

素因数の和:1221

約数の個数: 24

約数和(自身を含む): 8241408

約数和(自身を除く): 4341188

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1021, 1910, 2042, 3820, 4084, 5105, 10210, 20420, 195011, 390022, 780044, 975055, 1950110, 3900220]

約数ペア:

[(1, 3900220), (2, 1950110), (4, 975055), (5, 780044), (10, 390022), (20, 195011), (191, 20420), (382, 10210), (764, 5105), (955, 4084), (1021, 3820), (1910, 2042)]