199418930

素因数分解:

$2^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{20123}}^1$

素因数の和:21121

約数の個数: 16

約数和(自身を含む): 359334144

約数和(自身を除く): 159915214

約数列:

[1, 2, 5, 10, 991, 1982, 4955, 9910, 20123, 40246, 100615, 201230, 19941893, 39883786, 99709465, 199418930]

約数ペア:

[(1, 199418930), (2, 99709465), (5, 39883786), (10, 19941893), (991, 201230), (1982, 100615), (4955, 40246), (9910, 20123)]