121121890

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{111121}}^1$

素因数の和:111237

約数の個数: 16

約数和(自身を含む): 220021560

約数和(自身を除く): 98899670

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 111121, 222242, 555605, 1111210, 12112189, 24224378, 60560945, 121121890]

約数ペア:

[(1, 121121890), (2, 60560945), (5, 24224378), (10, 12112189), (109, 1111210), (218, 555605), (545, 222242), (1090, 111121)]