99972560

素因数分解:

$2^4\times 5^1\times {\mathrm{1249657}}^1$

素因数の和:1249670

約数の個数: 20

約数和(自身を含む): 232436388

約数和(自身を除く): 132463828

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1249657, 2499314, 4998628, 6248285, 9997256, 12496570, 19994512, 24993140, 49986280, 99972560]

約数ペア:

[(1, 99972560), (2, 49986280), (4, 24993140), (5, 19994512), (8, 12496570), (10, 9997256), (16, 6248285), (20, 4998628), (40, 2499314), (80, 1249657)]