3985880

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{397}}^1$

素因数の和:659

約数の個数: 32

約数和(自身を含む): 9026640

約数和(自身を除く): 5040760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 397, 502, 794, 1004, 1255, 1588, 1985, 2008, 2510, 3176, 3970, 5020, 7940, 10040, 15880, 99647, 199294, 398588, 498235, 797176, 996470, 1992940, 3985880]

約数ペア:

[(1, 3985880), (2, 1992940), (4, 996470), (5, 797176), (8, 498235), (10, 398588), (20, 199294), (40, 99647), (251, 15880), (397, 10040), (502, 7940), (794, 5020), (1004, 3970), (1255, 3176), (1588, 2510), (1985, 2008)]