189791890

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{174121}}^1$

素因数の和:174237

約数の個数: 16

約数和(自身を含む): 344761560

約数和(自身を除く): 154969670

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 174121, 348242, 870605, 1741210, 18979189, 37958378, 94895945, 189791890]

約数ペア:

[(1, 189791890), (2, 94895945), (5, 37958378), (10, 18979189), (109, 1741210), (218, 870605), (545, 348242), (1090, 174121)]