131385254

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:166

約数の個数: 128

約数和(自身を含む): 286433280

約数和(自身を除く): 155048026

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 29, 31, 58, 62, 73, 77, 91, 143, 146, 154, 182, 203, 217, 286, 319, 341, 377, 403, 406, 434, 511, 638, 682, 754, 803, 806, 899, 949, 1001, 1022, 1606, 1798, 1898, 2002, 2117, 2233, 2263, 2387, 2639, 2821, 4147, 4234, 4433, 4466, 4526, 4774, 5278, 5621, 5642, 6293, 6643, 8294, 8866, 9889, 10439, 11242, 11687, 12586, 13286, 14819, 15841, 19778, 20878, 23287, 23374, 24893, 27521, 29029, 29419, 29638, 31031, 31682, 46574, 49786, 55042, 58058, 58838, 62062, 65627, 69223, 73073, 81809, 128557, 131254, 138446, 146146, 163009, 163618, 174251, 192647, 205933, 257114, 302731, 323609, 326018, 348502, 385294, 411866, 459389, 605462, 647218, 721897, 853151, 899899, 918778, 1443794, 1706302, 1799798, 2119117, 2265263, 4238234, 4530526, 5053279, 5972057, 9384661, 10106558, 11944114, 18769322, 65692627, 131385254]

約数ペア:

[(1, 131385254), (2, 65692627), (7, 18769322), (11, 11944114), (13, 10106558), (14, 9384661), (22, 5972057), (26, 5053279), (29, 4530526), (31, 4238234), (58, 2265263), (62, 2119117), (73, 1799798), (77, 1706302), (91, 1443794), (143, 918778), (146, 899899), (154, 853151), (182, 721897), (203, 647218), (217, 605462), (286, 459389), (319, 411866), (341, 385294), (377, 348502), (403, 326018), (406, 323609), (434, 302731), (511, 257114), (638, 205933), (682, 192647), (754, 174251), (803, 163618), (806, 163009), (899, 146146), (949, 138446), (1001, 131254), (1022, 128557), (1606, 81809), (1798, 73073), (1898, 69223), (2002, 65627), (2117, 62062), (2233, 58838), (2263, 58058), (2387, 55042), (2639, 49786), (2821, 46574), (4147, 31682), (4234, 31031), (4433, 29638), (4466, 29419), (4526, 29029), (4774, 27521), (5278, 24893), (5621, 23374), (5642, 23287), (6293, 20878), (6643, 19778), (8294, 15841), (8866, 14819), (9889, 13286), (10439, 12586), (11242, 11687)]