257791226

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{4909}}^1$

素因数の和:4971

約数の個数: 48

約数和(自身を含む): 501527040

約数和(自身を除く): 243735814

約数列:

[1, 2, 7, 11, 14, 22, 31, 62, 77, 121, 154, 217, 242, 341, 434, 682, 847, 1694, 2387, 3751, 4774, 4909, 7502, 9818, 26257, 34363, 52514, 53999, 68726, 107998, 152179, 304358, 377993, 593989, 755986, 1065253, 1187978, 1673969, 2130506, 3347938, 4157923, 8315846, 11717783, 18413659, 23435566, 36827318, 128895613, 257791226]

約数ペア:

[(1, 257791226), (2, 128895613), (7, 36827318), (11, 23435566), (14, 18413659), (22, 11717783), (31, 8315846), (62, 4157923), (77, 3347938), (121, 2130506), (154, 1673969), (217, 1187978), (242, 1065253), (341, 755986), (434, 593989), (682, 377993), (847, 304358), (1694, 152179), (2387, 107998), (3751, 68726), (4774, 53999), (4909, 52514), (7502, 34363), (9818, 26257)]