20185945480

素因数分解:

$2^3\times 5^1\times {\mathrm{9803}}^1\times {\mathrm{51479}}^1$

素因数の和:61293

約数の個数: 32

約数和(自身を含む): 45423892800

約数和(自身を除く): 25237947320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9803, 19606, 39212, 49015, 51479, 78424, 98030, 102958, 196060, 205916, 257395, 392120, 411832, 514790, 1029580, 2059160, 504648637, 1009297274, 2018594548, 2523243185, 4037189096, 5046486370, 10092972740, 20185945480]

約数ペア:

[(1, 20185945480), (2, 10092972740), (4, 5046486370), (5, 4037189096), (8, 2523243185), (10, 2018594548), (20, 1009297274), (40, 504648637), (9803, 2059160), (19606, 1029580), (39212, 514790), (49015, 411832), (51479, 392120), (78424, 257395), (98030, 205916), (102958, 196060)]