171915890

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{157721}}^1$

素因数の和:157837

約数の個数: 16

約数和(自身を含む): 312289560

約数和(自身を除く): 140373670

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 157721, 315442, 788605, 1577210, 17191589, 34383178, 85957945, 171915890]

約数ペア:

[(1, 171915890), (2, 85957945), (5, 34383178), (10, 17191589), (109, 1577210), (218, 788605), (545, 315442), (1090, 157721)]