256460974

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{87649}}^1$

素因数の和:87688

約数の個数: 32

約数和(自身を含む): 504864000

約数和(自身を除く): 248403026

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 77, 133, 154, 209, 266, 418, 1463, 2926, 87649, 175298, 613543, 964139, 1227086, 1665331, 1928278, 3330662, 6748973, 11657317, 13497946, 18318641, 23314634, 36637282, 128230487, 256460974]

約数ペア:

[(1, 256460974), (2, 128230487), (7, 36637282), (11, 23314634), (14, 18318641), (19, 13497946), (22, 11657317), (38, 6748973), (77, 3330662), (133, 1928278), (154, 1665331), (209, 1227086), (266, 964139), (418, 613543), (1463, 175298), (2926, 87649)]