99975280

素因数分解:

$2^4\times 5^1\times {\mathrm{1249691}}^1$

素因数の和:1249704

約数の個数: 20

約数和(自身を含む): 232442712

約数和(自身を除く): 132467432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1249691, 2499382, 4998764, 6248455, 9997528, 12496910, 19995056, 24993820, 49987640, 99975280]

約数ペア:

[(1, 99975280), (2, 49987640), (4, 24993820), (5, 19995056), (8, 12496910), (10, 9997528), (16, 6248455), (20, 4998764), (40, 2499382), (80, 1249691)]