20784525110

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1361}}^1\times {\mathrm{17159}}^1$

素因数の和:18616

約数の個数: 32

約数和(自身を含む): 37862510400

約数和(自身を除く): 17077985290

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 1361, 2722, 6805, 13610, 17159, 34318, 85795, 121129, 171590, 242258, 605645, 1211290, 1527151, 3054302, 7635755, 15271510, 23353399, 46706798, 116766995, 233533990, 2078452511, 4156905022, 10392262555, 20784525110]

約数ペア:

[(1, 20784525110), (2, 10392262555), (5, 4156905022), (10, 2078452511), (89, 233533990), (178, 116766995), (445, 46706798), (890, 23353399), (1361, 15271510), (2722, 7635755), (6805, 3054302), (13610, 1527151), (17159, 1211290), (34318, 605645), (85795, 242258), (121129, 171590)]