18914560

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{2111}}^1$

素因数の和:2139

約数の個数: 72

約数和(自身を含む): 51803136

約数和(自身を除く): 32888576

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, 560, 640, 896, 1120, 1280, 1792, 2111, 2240, 4222, 4480, 8444, 8960, 10555, 14777, 16888, 21110, 29554, 33776, 42220, 59108, 67552, 73885, 84440, 118216, 135104, 147770, 168880, 236432, 270208, 295540, 337760, 472864, 540416, 591080, 675520, 945728, 1182160, 1351040, 1891456, 2364320, 2702080, 3782912, 4728640, 9457280, 18914560]

約数ペア:

[(1, 18914560), (2, 9457280), (4, 4728640), (5, 3782912), (7, 2702080), (8, 2364320), (10, 1891456), (14, 1351040), (16, 1182160), (20, 945728), (28, 675520), (32, 591080), (35, 540416), (40, 472864), (56, 337760), (64, 295540), (70, 270208), (80, 236432), (112, 168880), (128, 147770), (140, 135104), (160, 118216), (224, 84440), (256, 73885), (280, 67552), (320, 59108), (448, 42220), (560, 33776), (640, 29554), (896, 21110), (1120, 16888), (1280, 14777), (1792, 10555), (2111, 8960), (2240, 8444), (4222, 4480)]