20457310315

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{349}}^1\times {\mathrm{53047}}^1$

素因数の和:53431

約数の個数: 32

約数和(自身を含む): 28073001600

約数和(自身を除く): 7615691285

約数列:

[1, 5, 13, 17, 65, 85, 221, 349, 1105, 1745, 4537, 5933, 22685, 29665, 53047, 77129, 265235, 385645, 689611, 901799, 3448055, 4508995, 11723387, 18513403, 58616935, 92567015, 240674239, 314727851, 1203371195, 1573639255, 4091462063, 20457310315]

約数ペア:

[(1, 20457310315), (5, 4091462063), (13, 1573639255), (17, 1203371195), (65, 314727851), (85, 240674239), (221, 92567015), (349, 58616935), (1105, 18513403), (1745, 11723387), (4537, 4508995), (5933, 3448055), (22685, 901799), (29665, 689611), (53047, 385645), (77129, 265235)]