18519040

素因数分解:

$2^{10}\times 5^1\times {\mathrm{3617}}^1$

素因数の和:3642

約数の個数: 44

約数和(自身を含む): 44436276

約数和(自身を除く): 25917236

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 3617, 5120, 7234, 14468, 18085, 28936, 36170, 57872, 72340, 115744, 144680, 231488, 289360, 462976, 578720, 925952, 1157440, 1851904, 2314880, 3703808, 4629760, 9259520, 18519040]

約数ペア:

[(1, 18519040), (2, 9259520), (4, 4629760), (5, 3703808), (8, 2314880), (10, 1851904), (16, 1157440), (20, 925952), (32, 578720), (40, 462976), (64, 289360), (80, 231488), (128, 144680), (160, 115744), (256, 72340), (320, 57872), (512, 36170), (640, 28936), (1024, 18085), (1280, 14468), (2560, 7234), (3617, 5120)]