20820227905

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{14653}}^1$

素因数の和:14881

約数の個数: 32

約数和(自身を含む): 26334996480

約数和(自身を除く): 5514768575

約数列:

[1, 5, 31, 89, 103, 155, 445, 515, 2759, 3193, 9167, 13795, 14653, 15965, 45835, 73265, 284177, 454243, 1304117, 1420885, 1509259, 2271215, 6520585, 7546295, 40427627, 46787029, 134324051, 202138135, 233935145, 671620255, 4164045581, 20820227905]

約数ペア:

[(1, 20820227905), (5, 4164045581), (31, 671620255), (89, 233935145), (103, 202138135), (155, 134324051), (445, 46787029), (515, 40427627), (2759, 7546295), (3193, 6520585), (9167, 2271215), (13795, 1509259), (14653, 1420885), (15965, 1304117), (45835, 454243), (73265, 284177)]