64591865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{21143}}^1$

素因数の和:21208

約数の個数: 16

約数和(自身を含む): 85252608

約数和(自身を除く): 20660743

約数列:

[1, 5, 13, 47, 65, 235, 611, 3055, 21143, 105715, 274859, 993721, 1374295, 4968605, 12918373, 64591865]

約数ペア:

[(1, 64591865), (5, 12918373), (13, 4968605), (47, 1374295), (65, 993721), (235, 274859), (611, 105715), (3055, 21143)]