257222732

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{8849}}^1$

素因数の和:8922

約数の個数: 36

約数和(自身を含む): 498821400

約数和(自身を除く): 241598668

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 169, 172, 338, 559, 676, 1118, 2236, 7267, 8849, 14534, 17698, 29068, 35396, 115037, 230074, 380507, 460148, 761014, 1495481, 1522028, 2990962, 4946591, 5981924, 9893182, 19786364, 64305683, 128611366, 257222732]

約数ペア:

[(1, 257222732), (2, 128611366), (4, 64305683), (13, 19786364), (26, 9893182), (43, 5981924), (52, 4946591), (86, 2990962), (169, 1522028), (172, 1495481), (338, 761014), (559, 460148), (676, 380507), (1118, 230074), (2236, 115037), (7267, 35396), (8849, 29068), (14534, 17698)]