20685532545

素因数分解:

$3^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{194203}}^1$

素因数の和:194483

約数の個数: 40

約数和(自身を含む): 37221915456

約数和(自身を除く): 16536382911

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 263, 405, 789, 1315, 2367, 3945, 7101, 11835, 21303, 35505, 106515, 194203, 582609, 971015, 1747827, 2913045, 5243481, 8739135, 15730443, 26217405, 51075389, 78652215, 153226167, 255376945, 459678501, 766130835, 1379035503, 2298392505, 4137106509, 6895177515, 20685532545]

約数ペア:

[(1, 20685532545), (3, 6895177515), (5, 4137106509), (9, 2298392505), (15, 1379035503), (27, 766130835), (45, 459678501), (81, 255376945), (135, 153226167), (263, 78652215), (405, 51075389), (789, 26217405), (1315, 15730443), (2367, 8739135), (3945, 5243481), (7101, 2913045), (11835, 1747827), (21303, 971015), (35505, 582609), (106515, 194203)]