201218960

素因数分解:

$2^4\times 5^1\times {\mathrm{2515237}}^1$

素因数の和:2515250

約数の個数: 20

約数和(自身を含む): 467834268

約数和(自身を除く): 266615308

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2515237, 5030474, 10060948, 12576185, 20121896, 25152370, 40243792, 50304740, 100609480, 201218960]

約数ペア:

[(1, 201218960), (2, 100609480), (4, 50304740), (5, 40243792), (8, 25152370), (10, 20121896), (16, 12576185), (20, 10060948), (40, 5030474), (80, 2515237)]