3928180

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{997}}^1$

素因数の和:1203

約数の個数: 24

約数和(自身を含む): 8299368

約数和(自身を除く): 4371188

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 997, 1970, 1994, 3940, 3988, 4985, 9970, 19940, 196409, 392818, 785636, 982045, 1964090, 3928180]

約数ペア:

[(1, 3928180), (2, 1964090), (4, 982045), (5, 785636), (10, 392818), (20, 196409), (197, 19940), (394, 9970), (788, 4985), (985, 3988), (997, 3940), (1970, 1994)]