20779465

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{311}}^1$

素因数の和:429

約数の個数: 32

約数和(自身を含む): 30191616

約数和(自身を除く): 9412151

約数列:

[1, 5, 7, 23, 35, 83, 115, 161, 311, 415, 581, 805, 1555, 1909, 2177, 2905, 7153, 9545, 10885, 13363, 25813, 35765, 50071, 66815, 129065, 180691, 250355, 593699, 903455, 2968495, 4155893, 20779465]

約数ペア:

[(1, 20779465), (5, 4155893), (7, 2968495), (23, 903455), (35, 593699), (83, 250355), (115, 180691), (161, 129065), (311, 66815), (415, 50071), (581, 35765), (805, 25813), (1555, 13363), (1909, 10885), (2177, 9545), (2905, 7153)]