18513280

素因数分解:

$2^7\times 5^1\times {\mathrm{28927}}^1$

素因数の和:28946

約数の個数: 32

約数和(自身を含む): 44259840

約数和(自身を除く): 25746560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 28927, 57854, 115708, 144635, 231416, 289270, 462832, 578540, 925664, 1157080, 1851328, 2314160, 3702656, 4628320, 9256640, 18513280]

約数ペア:

[(1, 18513280), (2, 9256640), (4, 4628320), (5, 3702656), (8, 2314160), (10, 1851328), (16, 1157080), (20, 925664), (32, 578540), (40, 462832), (64, 289270), (80, 231416), (128, 144635), (160, 115708), (320, 57854), (640, 28927)]