261777208

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^2\times {\mathrm{5519}}^1$

素因数の和:5561

約数の個数: 72

約数和(自身を含む): 627706800

約数和(自身を除く): 365929592

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 49, 56, 77, 88, 98, 121, 154, 196, 242, 308, 392, 484, 539, 616, 847, 968, 1078, 1694, 2156, 3388, 4312, 5519, 5929, 6776, 11038, 11858, 22076, 23716, 38633, 44152, 47432, 60709, 77266, 121418, 154532, 242836, 270431, 309064, 424963, 485672, 540862, 667799, 849926, 1081724, 1335598, 1699852, 2163448, 2671196, 2974741, 3399704, 4674593, 5342392, 5949482, 9349186, 11898964, 18698372, 23797928, 32722151, 37396744, 65444302, 130888604, 261777208]

約数ペア:

[(1, 261777208), (2, 130888604), (4, 65444302), (7, 37396744), (8, 32722151), (11, 23797928), (14, 18698372), (22, 11898964), (28, 9349186), (44, 5949482), (49, 5342392), (56, 4674593), (77, 3399704), (88, 2974741), (98, 2671196), (121, 2163448), (154, 1699852), (196, 1335598), (242, 1081724), (308, 849926), (392, 667799), (484, 540862), (539, 485672), (616, 424963), (847, 309064), (968, 270431), (1078, 242836), (1694, 154532), (2156, 121418), (3388, 77266), (4312, 60709), (5519, 47432), (5929, 44152), (6776, 38633), (11038, 23716), (11858, 22076)]