655121727

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{661}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 1049656608

約数和(自身を除く): 394534881

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 197, 387, 559, 591, 661, 1677, 1773, 1983, 2561, 5031, 5949, 7683, 8471, 8593, 23049, 25413, 25779, 28423, 76239, 77337, 85269, 110123, 130217, 255807, 330369, 369499, 390651, 991107, 1108497, 1171953, 1692821, 3325491, 5078463, 5599331, 15235389, 16797993, 50393979, 72791303, 218373909, 655121727]

約数ペア:

[(1, 655121727), (3, 218373909), (9, 72791303), (13, 50393979), (39, 16797993), (43, 15235389), (117, 5599331), (129, 5078463), (197, 3325491), (387, 1692821), (559, 1171953), (591, 1108497), (661, 991107), (1677, 390651), (1773, 369499), (1983, 330369), (2561, 255807), (5031, 130217), (5949, 110123), (7683, 85269), (8471, 77337), (8593, 76239), (23049, 28423), (25413, 25779)]