64493065

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{20249}}^1$

素因数の和:20281

約数の個数: 24

約数和(自身を含む): 96957000

約数和(自身を除く): 32463935

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 20249, 101245, 141743, 263237, 708715, 992201, 1316185, 1842659, 4961005, 9213295, 12898613, 64493065]

約数ペア:

[(1, 64493065), (5, 12898613), (7, 9213295), (13, 4961005), (35, 1842659), (49, 1316185), (65, 992201), (91, 708715), (245, 263237), (455, 141743), (637, 101245), (3185, 20249)]