189909890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1117117}}^1$

素因数の和:1117141

約数の個数: 16

約数和(自身を含む): 361946232

約数和(自身を除く): 172036342

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 1117117, 2234234, 5585585, 11171170, 18990989, 37981978, 94954945, 189909890]

約数ペア:

[(1, 189909890), (2, 94954945), (5, 37981978), (10, 18990989), (17, 11171170), (34, 5585585), (85, 2234234), (170, 1117117)]