81355795

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{18059}}^1$

素因数の和:18134

約数の個数: 16

約数和(自身を含む): 105325920

約数和(自身を除く): 23970125

約数列:

[1, 5, 17, 53, 85, 265, 901, 4505, 18059, 90295, 307003, 957127, 1535015, 4785635, 16271159, 81355795]

約数ペア:

[(1, 81355795), (5, 16271159), (17, 4785635), (53, 1535015), (85, 957127), (265, 307003), (901, 90295), (4505, 18059)]