208501345

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{9931}}^1$

素因数の和:9985

約数の個数: 32

約数和(自身を含む): 300343680

約数和(自身を除く): 91842335

約数列:

[1, 5, 13, 17, 19, 65, 85, 95, 221, 247, 323, 1105, 1235, 1615, 4199, 9931, 20995, 49655, 129103, 168827, 188689, 645515, 844135, 943445, 2194751, 2452957, 3207713, 10973755, 12264785, 16038565, 41700269, 208501345]

約数ペア:

[(1, 208501345), (5, 41700269), (13, 16038565), (17, 12264785), (19, 10973755), (65, 3207713), (85, 2452957), (95, 2194751), (221, 943445), (247, 844135), (323, 645515), (1105, 188689), (1235, 168827), (1615, 129103), (4199, 49655), (9931, 20995)]