289719248

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{1031}}^1$

素因数の和:1252

約数の個数: 80

約数和(自身を含む): 695122176

約数和(自身を除く): 405402928

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 193, 208, 364, 386, 728, 772, 1031, 1351, 1456, 1544, 2062, 2509, 2702, 3088, 4124, 5018, 5404, 7217, 8248, 10036, 10808, 13403, 14434, 16496, 17563, 20072, 21616, 26806, 28868, 35126, 40144, 53612, 57736, 70252, 93821, 107224, 115472, 140504, 187642, 198983, 214448, 281008, 375284, 397966, 750568, 795932, 1392881, 1501136, 1591864, 2586779, 2785762, 3183728, 5173558, 5571524, 10347116, 11143048, 18107453, 20694232, 22286096, 36214906, 41388464, 72429812, 144859624, 289719248]

約数ペア:

[(1, 289719248), (2, 144859624), (4, 72429812), (7, 41388464), (8, 36214906), (13, 22286096), (14, 20694232), (16, 18107453), (26, 11143048), (28, 10347116), (52, 5571524), (56, 5173558), (91, 3183728), (104, 2785762), (112, 2586779), (182, 1591864), (193, 1501136), (208, 1392881), (364, 795932), (386, 750568), (728, 397966), (772, 375284), (1031, 281008), (1351, 214448), (1456, 198983), (1544, 187642), (2062, 140504), (2509, 115472), (2702, 107224), (3088, 93821), (4124, 70252), (5018, 57736), (5404, 53612), (7217, 40144), (8248, 35126), (10036, 28868), (10808, 26806), (13403, 21616), (14434, 20072), (16496, 17563)]