81477305

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{541}}^1$

素因数の和:897

約数の個数: 32

約数和(自身を含む): 120922368

約数和(自身を除く): 39445063

約数列:

[1, 5, 7, 13, 35, 65, 91, 331, 455, 541, 1655, 2317, 2705, 3787, 4303, 7033, 11585, 18935, 21515, 30121, 35165, 49231, 150605, 179071, 246155, 895355, 1253497, 2327923, 6267485, 11639615, 16295461, 81477305]

約数ペア:

[(1, 81477305), (5, 16295461), (7, 11639615), (13, 6267485), (35, 2327923), (65, 1253497), (91, 895355), (331, 246155), (455, 179071), (541, 150605), (1655, 49231), (2317, 35165), (2705, 30121), (3787, 21515), (4303, 18935), (7033, 11585)]