289589440

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{129281}}^1$

素因数の和:129305

約数の個数: 56

約数和(自身を含む): 788103072

約数和(自身を除く): 498513632

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 129281, 258562, 517124, 646405, 904967, 1034248, 1292810, 1809934, 2068496, 2585620, 3619868, 4136992, 4524835, 5171240, 7239736, 8273984, 9049670, 10342480, 14479472, 18099340, 20684960, 28958944, 36198680, 41369920, 57917888, 72397360, 144794720, 289589440]

約数ペア:

[(1, 289589440), (2, 144794720), (4, 72397360), (5, 57917888), (7, 41369920), (8, 36198680), (10, 28958944), (14, 20684960), (16, 18099340), (20, 14479472), (28, 10342480), (32, 9049670), (35, 8273984), (40, 7239736), (56, 5171240), (64, 4524835), (70, 4136992), (80, 3619868), (112, 2585620), (140, 2068496), (160, 1809934), (224, 1292810), (280, 1034248), (320, 904967), (448, 646405), (560, 517124), (1120, 258562), (2240, 129281)]