208067405

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{1061}}^1$

素因数の和:1517

約数の個数: 32

約数和(自身を含む): 308302848

約数和(自身を除く): 100235443

約数列:

[1, 5, 7, 13, 35, 65, 91, 431, 455, 1061, 2155, 3017, 5305, 5603, 7427, 13793, 15085, 28015, 37135, 39221, 68965, 96551, 196105, 457291, 482755, 2286455, 3201037, 5944783, 16005185, 29723915, 41613481, 208067405]

約数ペア:

[(1, 208067405), (5, 41613481), (7, 29723915), (13, 16005185), (35, 5944783), (65, 3201037), (91, 2286455), (431, 482755), (455, 457291), (1061, 196105), (2155, 96551), (3017, 68965), (5305, 39221), (5603, 37135), (7427, 28015), (13793, 15085)]