2019967495

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{28277}}^1$

素因数の和:28459

約数の個数: 32

約数和(自身を含む): 3002444928

約数和(自身を除く): 982477433

約数列:

[1, 5, 7, 13, 35, 65, 91, 157, 455, 785, 1099, 2041, 5495, 10205, 14287, 28277, 71435, 141385, 197939, 367601, 989695, 1838005, 2573207, 4439489, 12866035, 22197445, 31076423, 57713357, 155382115, 288566785, 403993499, 2019967495]

約数ペア:

[(1, 2019967495), (5, 403993499), (7, 288566785), (13, 155382115), (35, 57713357), (65, 31076423), (91, 22197445), (157, 12866035), (455, 4439489), (785, 2573207), (1099, 1838005), (2041, 989695), (5495, 367601), (10205, 197939), (14287, 141385), (28277, 71435)]