20780490073

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1231}}^1\times {\mathrm{3299}}^1$

素因数の和:4597

約数の個数: 32

約数和(自身を含む): 25759641600

約数和(自身を除く): 4979151527

約数列:

[1, 7, 17, 43, 119, 301, 731, 1231, 3299, 5117, 8617, 20927, 23093, 52933, 56083, 141857, 146489, 370531, 392581, 899861, 992999, 2411569, 4061069, 6299027, 16880983, 28427483, 69038173, 174625967, 483267211, 1222381769, 2968641439, 20780490073]

約数ペア:

[(1, 20780490073), (7, 2968641439), (17, 1222381769), (43, 483267211), (119, 174625967), (301, 69038173), (731, 28427483), (1231, 16880983), (3299, 6299027), (5117, 4061069), (8617, 2411569), (20927, 992999), (23093, 899861), (52933, 392581), (56083, 370531), (141857, 146489)]