21445760

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4787}}^1$

素因数の和:4813

約数の個数: 64

約数和(自身を含む): 58605120

約数和(自身を除く): 37159360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 4787, 9574, 19148, 23935, 33509, 38296, 47870, 67018, 76592, 95740, 134036, 153184, 167545, 191480, 268072, 306368, 335090, 382960, 536144, 612736, 670180, 765920, 1072288, 1340360, 1531840, 2144576, 2680720, 3063680, 4289152, 5361440, 10722880, 21445760]

約数ペア:

[(1, 21445760), (2, 10722880), (4, 5361440), (5, 4289152), (7, 3063680), (8, 2680720), (10, 2144576), (14, 1531840), (16, 1340360), (20, 1072288), (28, 765920), (32, 670180), (35, 612736), (40, 536144), (56, 382960), (64, 335090), (70, 306368), (80, 268072), (112, 191480), (128, 167545), (140, 153184), (160, 134036), (224, 95740), (280, 76592), (320, 67018), (448, 47870), (560, 38296), (640, 33509), (896, 23935), (1120, 19148), (2240, 9574), (4480, 4787)]