31818190

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{29191}}^1$

素因数の和:29307

約数の個数: 16

約数和(自身を含む): 57800160

約数和(自身を除く): 25981970

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 29191, 58382, 145955, 291910, 3181819, 6363638, 15909095, 31818190]

約数ペア:

[(1, 31818190), (2, 15909095), (5, 6363638), (10, 3181819), (109, 291910), (218, 145955), (545, 58382), (1090, 29191)]