2011520

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{449}}^1$

素因数の和:475

約数の個数: 64

約数和(自身を含む): 5508000

約数和(自身を除く): 3496480

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, 449, 560, 640, 896, 898, 1120, 1796, 2240, 2245, 3143, 3592, 4480, 4490, 6286, 7184, 8980, 12572, 14368, 15715, 17960, 25144, 28736, 31430, 35920, 50288, 57472, 62860, 71840, 100576, 125720, 143680, 201152, 251440, 287360, 402304, 502880, 1005760, 2011520]

約数ペア:

[(1, 2011520), (2, 1005760), (4, 502880), (5, 402304), (7, 287360), (8, 251440), (10, 201152), (14, 143680), (16, 125720), (20, 100576), (28, 71840), (32, 62860), (35, 57472), (40, 50288), (56, 35920), (64, 31430), (70, 28736), (80, 25144), (112, 17960), (128, 15715), (140, 14368), (160, 12572), (224, 8980), (280, 7184), (320, 6286), (448, 4490), (449, 4480), (560, 3592), (640, 3143), (896, 2245), (898, 2240), (1120, 1796)]