81620695

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{2467}}^1$

素因数の和:2994

約数の個数: 16

約数和(自身を含む): 105729120

約数和(自身を除く): 24108425

約数列:

[1, 5, 13, 65, 509, 2467, 2545, 6617, 12335, 32071, 33085, 160355, 1255703, 6278515, 16324139, 81620695]

約数ペア:

[(1, 81620695), (5, 16324139), (13, 6278515), (65, 1255703), (509, 160355), (2467, 33085), (2545, 32071), (6617, 12335)]