256291209664

素因数分解:

$2^6\times 7^1\times {\mathrm{1997}}^1\times {\mathrm{286469}}^1$

素因数の和:288485

約数の個数: 56

約数和(自身を含む): 581524932960

約数和(自身を除く): 325233723296

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 448, 1997, 3994, 7988, 13979, 15976, 27958, 31952, 55916, 63904, 111832, 127808, 223664, 286469, 447328, 572938, 894656, 1145876, 2005283, 2291752, 4010566, 4583504, 8021132, 9167008, 16042264, 18334016, 32084528, 64169056, 128338112, 572078593, 1144157186, 2288314372, 4004550151, 4576628744, 8009100302, 9153257488, 16018200604, 18306514976, 32036401208, 36613029952, 64072802416, 128145604832, 256291209664]

約数ペア:

[(1, 256291209664), (2, 128145604832), (4, 64072802416), (7, 36613029952), (8, 32036401208), (14, 18306514976), (16, 16018200604), (28, 9153257488), (32, 8009100302), (56, 4576628744), (64, 4004550151), (112, 2288314372), (224, 1144157186), (448, 572078593), (1997, 128338112), (3994, 64169056), (7988, 32084528), (13979, 18334016), (15976, 16042264), (27958, 9167008), (31952, 8021132), (55916, 4583504), (63904, 4010566), (111832, 2291752), (127808, 2005283), (223664, 1145876), (286469, 894656), (447328, 572938)]