81310745

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{18049}}^1$

素因数の和:18124

約数の個数: 16

約数和(自身を含む): 105267600

約数和(自身を除く): 23956855

約数列:

[1, 5, 17, 53, 85, 265, 901, 4505, 18049, 90245, 306833, 956597, 1534165, 4782985, 16262149, 81310745]

約数ペア:

[(1, 81310745), (5, 16262149), (17, 4782985), (53, 1534165), (85, 956597), (265, 306833), (901, 90245), (4505, 18049)]