2159576920

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{412133}}^1$

素因数の和:412275

約数の個数: 32

約数和(自身を含む): 4896151920

約数和(自身を除く): 2736575000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 412133, 824266, 1648532, 2060665, 3297064, 4121330, 8242660, 16485320, 53989423, 107978846, 215957692, 269947115, 431915384, 539894230, 1079788460, 2159576920]

約数ペア:

[(1, 2159576920), (2, 1079788460), (4, 539894230), (5, 431915384), (8, 269947115), (10, 215957692), (20, 107978846), (40, 53989423), (131, 16485320), (262, 8242660), (524, 4121330), (655, 3297064), (1048, 2060665), (1310, 1648532), (2620, 824266), (5240, 412133)]