5261440

素因数分解:

$2^7\times 5^1\times {\mathrm{8221}}^1$

素因数の和:8240

約数の個数: 32

約数和(自身を含む): 12579660

約数和(自身を除く): 7318220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 8221, 16442, 32884, 41105, 65768, 82210, 131536, 164420, 263072, 328840, 526144, 657680, 1052288, 1315360, 2630720, 5261440]

約数ペア:

[(1, 5261440), (2, 2630720), (4, 1315360), (5, 1052288), (8, 657680), (10, 526144), (16, 328840), (20, 263072), (32, 164420), (40, 131536), (64, 82210), (80, 65768), (128, 41105), (160, 32884), (320, 16442), (640, 8221)]