2019840

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{263}}^1$

素因数の和:289

約数の個数: 80

約数和(自身を含む): 6481728

約数和(自身を除く): 4461888

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 263, 320, 384, 480, 512, 526, 640, 768, 789, 960, 1052, 1280, 1315, 1536, 1578, 1920, 2104, 2560, 2630, 3156, 3840, 3945, 4208, 5260, 6312, 7680, 7890, 8416, 10520, 12624, 15780, 16832, 21040, 25248, 31560, 33664, 42080, 50496, 63120, 67328, 84160, 100992, 126240, 134656, 168320, 201984, 252480, 336640, 403968, 504960, 673280, 1009920, 2019840]

約数ペア:

[(1, 2019840), (2, 1009920), (3, 673280), (4, 504960), (5, 403968), (6, 336640), (8, 252480), (10, 201984), (12, 168320), (15, 134656), (16, 126240), (20, 100992), (24, 84160), (30, 67328), (32, 63120), (40, 50496), (48, 42080), (60, 33664), (64, 31560), (80, 25248), (96, 21040), (120, 16832), (128, 15780), (160, 12624), (192, 10520), (240, 8416), (256, 7890), (263, 7680), (320, 6312), (384, 5260), (480, 4208), (512, 3945), (526, 3840), (640, 3156), (768, 2630), (789, 2560), (960, 2104), (1052, 1920), (1280, 1578), (1315, 1536)]