20163685460

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{443}}^1\times {\mathrm{20879}}^1$

素因数の和:21440

約数の個数: 48

約数和(自身を含む): 42830726400

約数和(自身を除く): 22667040940

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 443, 545, 886, 1090, 1772, 2180, 2215, 4430, 8860, 20879, 41758, 48287, 83516, 96574, 104395, 193148, 208790, 241435, 417580, 482870, 965740, 2275811, 4551622, 9103244, 9249397, 11379055, 18498794, 22758110, 36997588, 45516220, 46246985, 92493970, 184987940, 1008184273, 2016368546, 4032737092, 5040921365, 10081842730, 20163685460]

約数ペア:

[(1, 20163685460), (2, 10081842730), (4, 5040921365), (5, 4032737092), (10, 2016368546), (20, 1008184273), (109, 184987940), (218, 92493970), (436, 46246985), (443, 45516220), (545, 36997588), (886, 22758110), (1090, 18498794), (1772, 11379055), (2180, 9249397), (2215, 9103244), (4430, 4551622), (8860, 2275811), (20879, 965740), (41758, 482870), (48287, 417580), (83516, 241435), (96574, 208790), (104395, 193148)]