218914865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{10427}}^1$

素因数の和:10481

約数の個数: 32

約数和(自身を含む): 315342720

約数和(自身を除く): 96427855

約数列:

[1, 5, 13, 17, 19, 65, 85, 95, 221, 247, 323, 1105, 1235, 1615, 4199, 10427, 20995, 52135, 135551, 177259, 198113, 677755, 886295, 990565, 2304367, 2575469, 3367921, 11521835, 12877345, 16839605, 43782973, 218914865]

約数ペア:

[(1, 218914865), (5, 43782973), (13, 16839605), (17, 12877345), (19, 11521835), (65, 3367921), (85, 2575469), (95, 2304367), (221, 990565), (247, 886295), (323, 677755), (1105, 198113), (1235, 177259), (1615, 135551), (4199, 52135), (10427, 20995)]