290225988

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:426

約数の個数: 144

約数和(自身を含む): 841451520

約数和(自身を除く): 551225532

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 127, 156, 171, 228, 234, 247, 254, 257, 342, 381, 468, 494, 508, 514, 684, 741, 762, 771, 988, 1028, 1143, 1482, 1524, 1542, 1651, 2223, 2286, 2313, 2413, 2964, 3084, 3302, 3341, 4446, 4572, 4626, 4826, 4883, 4953, 6604, 6682, 7239, 8892, 9252, 9652, 9766, 9906, 10023, 13364, 14478, 14649, 14859, 19532, 19812, 20046, 21717, 28956, 29298, 29718, 30069, 31369, 32639, 40092, 43434, 43947, 58596, 59436, 60138, 62738, 63479, 65278, 86868, 87894, 94107, 97917, 120276, 125476, 126958, 130556, 175788, 188214, 190437, 195834, 253916, 282321, 293751, 376428, 380874, 391668, 424307, 564642, 571311, 587502, 620141, 761748, 848614, 1129284, 1142622, 1175004, 1240282, 1272921, 1697228, 1860423, 2285244, 2480564, 2545842, 3720846, 3818763, 5091684, 5581269, 7441692, 7637526, 8061833, 11162538, 15275052, 16123666, 22325076, 24185499, 32247332, 48370998, 72556497, 96741996, 145112994, 290225988]

約数ペア:

[(1, 290225988), (2, 145112994), (3, 96741996), (4, 72556497), (6, 48370998), (9, 32247332), (12, 24185499), (13, 22325076), (18, 16123666), (19, 15275052), (26, 11162538), (36, 8061833), (38, 7637526), (39, 7441692), (52, 5581269), (57, 5091684), (76, 3818763), (78, 3720846), (114, 2545842), (117, 2480564), (127, 2285244), (156, 1860423), (171, 1697228), (228, 1272921), (234, 1240282), (247, 1175004), (254, 1142622), (257, 1129284), (342, 848614), (381, 761748), (468, 620141), (494, 587502), (508, 571311), (514, 564642), (684, 424307), (741, 391668), (762, 380874), (771, 376428), (988, 293751), (1028, 282321), (1143, 253916), (1482, 195834), (1524, 190437), (1542, 188214), (1651, 175788), (2223, 130556), (2286, 126958), (2313, 125476), (2413, 120276), (2964, 97917), (3084, 94107), (3302, 87894), (3341, 86868), (4446, 65278), (4572, 63479), (4626, 62738), (4826, 60138), (4883, 59436), (4953, 58596), (6604, 43947), (6682, 43434), (7239, 40092), (8892, 32639), (9252, 31369), (9652, 30069), (9766, 29718), (9906, 29298), (10023, 28956), (13364, 21717), (14478, 20046), (14649, 19812), (14859, 19532)]