13201280

素因数分解:

$2^7\times 5^1\times {\mathrm{20627}}^1$

素因数の和:20646

約数の個数: 32

約数和(自身を含む): 31560840

約数和(自身を除く): 18359560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 20627, 41254, 82508, 103135, 165016, 206270, 330032, 412540, 660064, 825080, 1320128, 1650160, 2640256, 3300320, 6600640, 13201280]

約数ペア:

[(1, 13201280), (2, 6600640), (4, 3300320), (5, 2640256), (8, 1650160), (10, 1320128), (16, 825080), (20, 660064), (32, 412540), (40, 330032), (64, 206270), (80, 165016), (128, 103135), (160, 82508), (320, 41254), (640, 20627)]