646563816

素因数分解:

$2^3\times 3^3\times {\mathrm{29}}^1\times {\mathrm{233}}^1\times {\mathrm{443}}^1$

素因数の和:720

約数の個数: 128

約数和(自身を含む): 1870128000

約数和(自身を除く): 1223564184

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 29, 36, 54, 58, 72, 87, 108, 116, 174, 216, 232, 233, 261, 348, 443, 466, 522, 696, 699, 783, 886, 932, 1044, 1329, 1398, 1566, 1772, 1864, 2088, 2097, 2658, 2796, 3132, 3544, 3987, 4194, 5316, 5592, 6264, 6291, 6757, 7974, 8388, 10632, 11961, 12582, 12847, 13514, 15948, 16776, 20271, 23922, 25164, 25694, 27028, 31896, 38541, 40542, 47844, 50328, 51388, 54056, 60813, 77082, 81084, 95688, 102776, 103219, 115623, 121626, 154164, 162168, 182439, 206438, 231246, 243252, 308328, 309657, 346869, 364878, 412876, 462492, 486504, 619314, 693738, 729756, 825752, 924984, 928971, 1238628, 1387476, 1459512, 1857942, 2477256, 2774952, 2786913, 2993351, 3715884, 5573826, 5986702, 7431768, 8980053, 11147652, 11973404, 17960106, 22295304, 23946808, 26940159, 35920212, 53880318, 71840424, 80820477, 107760636, 161640954, 215521272, 323281908, 646563816]

約数ペア:

[(1, 646563816), (2, 323281908), (3, 215521272), (4, 161640954), (6, 107760636), (8, 80820477), (9, 71840424), (12, 53880318), (18, 35920212), (24, 26940159), (27, 23946808), (29, 22295304), (36, 17960106), (54, 11973404), (58, 11147652), (72, 8980053), (87, 7431768), (108, 5986702), (116, 5573826), (174, 3715884), (216, 2993351), (232, 2786913), (233, 2774952), (261, 2477256), (348, 1857942), (443, 1459512), (466, 1387476), (522, 1238628), (696, 928971), (699, 924984), (783, 825752), (886, 729756), (932, 693738), (1044, 619314), (1329, 486504), (1398, 462492), (1566, 412876), (1772, 364878), (1864, 346869), (2088, 309657), (2097, 308328), (2658, 243252), (2796, 231246), (3132, 206438), (3544, 182439), (3987, 162168), (4194, 154164), (5316, 121626), (5592, 115623), (6264, 103219), (6291, 102776), (6757, 95688), (7974, 81084), (8388, 77082), (10632, 60813), (11961, 54056), (12582, 51388), (12847, 50328), (13514, 47844), (15948, 40542), (16776, 38541), (20271, 31896), (23922, 27028), (25164, 25694)]