168990185

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{2711}}^1$

素因数の和:2873

約数の個数: 32

約数和(自身を含む): 251500032

約数和(自身を除く): 82509847

約数列:

[1, 5, 7, 13, 35, 65, 91, 137, 455, 685, 959, 1781, 2711, 4795, 8905, 12467, 13555, 18977, 35243, 62335, 94885, 176215, 246701, 371407, 1233505, 1857035, 2599849, 4828291, 12999245, 24141455, 33798037, 168990185]

約数ペア:

[(1, 168990185), (5, 33798037), (7, 24141455), (13, 12999245), (35, 4828291), (65, 2599849), (91, 1857035), (137, 1233505), (455, 371407), (685, 246701), (959, 176215), (1781, 94885), (2711, 62335), (4795, 35243), (8905, 18977), (12467, 13555)]