257500012

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{181}}^1$

素因数の和:383

約数の個数: 96

約数和(自身を含む): 587059200

約数和(自身を除く): 329559188

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 62, 77, 124, 149, 154, 181, 217, 298, 308, 341, 362, 434, 596, 682, 724, 868, 1043, 1267, 1364, 1639, 1991, 2086, 2387, 2534, 3278, 3982, 4172, 4619, 4774, 5068, 5611, 6556, 7964, 9238, 9548, 11222, 11473, 13937, 18476, 22444, 22946, 26969, 27874, 32333, 39277, 45892, 50809, 53938, 55748, 61721, 64666, 78554, 101618, 107876, 123442, 129332, 157108, 188783, 203236, 246884, 296659, 355663, 377566, 432047, 593318, 711326, 755132, 836039, 864094, 1186636, 1422652, 1672078, 1728188, 2076613, 3344156, 4153226, 5852273, 8306452, 9196429, 11704546, 18392858, 23409092, 36785716, 64375003, 128750006, 257500012]

約数ペア:

[(1, 257500012), (2, 128750006), (4, 64375003), (7, 36785716), (11, 23409092), (14, 18392858), (22, 11704546), (28, 9196429), (31, 8306452), (44, 5852273), (62, 4153226), (77, 3344156), (124, 2076613), (149, 1728188), (154, 1672078), (181, 1422652), (217, 1186636), (298, 864094), (308, 836039), (341, 755132), (362, 711326), (434, 593318), (596, 432047), (682, 377566), (724, 355663), (868, 296659), (1043, 246884), (1267, 203236), (1364, 188783), (1639, 157108), (1991, 129332), (2086, 123442), (2387, 107876), (2534, 101618), (3278, 78554), (3982, 64666), (4172, 61721), (4619, 55748), (4774, 53938), (5068, 50809), (5611, 45892), (6556, 39277), (7964, 32333), (9238, 27874), (9548, 26969), (11222, 22946), (11473, 22444), (13937, 18476)]