51989120

素因数分解:

$2^7\times 5^1\times {\mathrm{81233}}^1$

素因数の和:81252

約数の個数: 32

約数和(自身を含む): 124288020

約数和(自身を除く): 72298900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 81233, 162466, 324932, 406165, 649864, 812330, 1299728, 1624660, 2599456, 3249320, 5198912, 6498640, 10397824, 12997280, 25994560, 51989120]

約数ペア:

[(1, 51989120), (2, 25994560), (4, 12997280), (5, 10397824), (8, 6498640), (10, 5198912), (16, 3249320), (20, 2599456), (32, 1624660), (40, 1299728), (64, 812330), (80, 649864), (128, 406165), (160, 324932), (320, 162466), (640, 81233)]