1992940

素因数分解:

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

素因数の和:657

約数の個数: 24

約数和(自身を含む): 4212432

約数和(自身を除く): 2219492

約数列:

[1, 2, 4, 5, 10, 20, 251, 397, 502, 794, 1004, 1255, 1588, 1985, 2510, 3970, 5020, 7940, 99647, 199294, 398588, 498235, 996470, 1992940]

約数ペア:

[(1, 1992940), (2, 996470), (4, 498235), (5, 398588), (10, 199294), (20, 99647), (251, 7940), (397, 5020), (502, 3970), (794, 2510), (1004, 1985), (1255, 1588)]