121515520

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{6781}}^1$

素因数の和:6811

約数の個数: 80

約数和(自身を含む): 333023328

約数和(自身を除く): 211507808

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, 256, 280, 320, 448, 512, 560, 640, 896, 1120, 1280, 1792, 2240, 2560, 3584, 4480, 6781, 8960, 13562, 17920, 27124, 33905, 47467, 54248, 67810, 94934, 108496, 135620, 189868, 216992, 237335, 271240, 379736, 433984, 474670, 542480, 759472, 867968, 949340, 1084960, 1518944, 1735936, 1898680, 2169920, 3037888, 3471872, 3797360, 4339840, 6075776, 7594720, 8679680, 12151552, 15189440, 17359360, 24303104, 30378880, 60757760, 121515520]

約数ペア:

[(1, 121515520), (2, 60757760), (4, 30378880), (5, 24303104), (7, 17359360), (8, 15189440), (10, 12151552), (14, 8679680), (16, 7594720), (20, 6075776), (28, 4339840), (32, 3797360), (35, 3471872), (40, 3037888), (56, 2169920), (64, 1898680), (70, 1735936), (80, 1518944), (112, 1084960), (128, 949340), (140, 867968), (160, 759472), (224, 542480), (256, 474670), (280, 433984), (320, 379736), (448, 271240), (512, 237335), (560, 216992), (640, 189868), (896, 135620), (1120, 108496), (1280, 94934), (1792, 67810), (2240, 54248), (2560, 47467), (3584, 33905), (4480, 27124), (6781, 17920), (8960, 13562)]