209217255

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{571}}^1\times {\mathrm{1879}}^1$

素因数の和:2471

約数の個数: 32

約数和(自身を含む): 361320960

約数和(自身を除く): 152103705

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 571, 1713, 1879, 2855, 5637, 7423, 8565, 9395, 22269, 24427, 28185, 37115, 73281, 111345, 122135, 366405, 1072909, 3218727, 5364545, 13947817, 16093635, 41843451, 69739085, 209217255]

約数ペア:

[(1, 209217255), (3, 69739085), (5, 41843451), (13, 16093635), (15, 13947817), (39, 5364545), (65, 3218727), (195, 1072909), (571, 366405), (1713, 122135), (1879, 111345), (2855, 73281), (5637, 37115), (7423, 28185), (8565, 24427), (9395, 22269)]