20782670

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{122251}}^1$

素因数の和:122275

約数の個数: 16

約数和(自身を含む): 39609648

約数和(自身を除く): 18826978

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 122251, 244502, 611255, 1222510, 2078267, 4156534, 10391335, 20782670]

約数ペア:

[(1, 20782670), (2, 10391335), (5, 4156534), (10, 2078267), (17, 1222510), (34, 611255), (85, 244502), (170, 122251)]