31639880

素因数分解:

$2^3\times 5^1\times {\mathrm{790997}}^1$

素因数の和:791008

約数の個数: 16

約数和(自身を含む): 71189820

約数和(自身を除く): 39549940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 790997, 1581994, 3163988, 3954985, 6327976, 7909970, 15819940, 31639880]

約数ペア:

[(1, 31639880), (2, 15819940), (4, 7909970), (5, 6327976), (8, 3954985), (10, 3163988), (20, 1581994), (40, 790997)]