11521280

素因数分解:

$2^8\times 5^1\times {\mathrm{9001}}^1$

素因数の和:9022

約数の個数: 36

約数和(自身を含む): 27600132

約数和(自身を除く): 16078852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 9001, 18002, 36004, 45005, 72008, 90010, 144016, 180020, 288032, 360040, 576064, 720080, 1152128, 1440160, 2304256, 2880320, 5760640, 11521280]

約数ペア:

[(1, 11521280), (2, 5760640), (4, 2880320), (5, 2304256), (8, 1440160), (10, 1152128), (16, 720080), (20, 576064), (32, 360040), (40, 288032), (64, 180020), (80, 144016), (128, 90010), (160, 72008), (256, 45005), (320, 36004), (640, 18002), (1280, 9001)]