254418220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1817273}}^1$

素因数の和:1817289

約数の個数: 24

約数和(自身を含む): 610604064

約数和(自身を除く): 356185844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1817273, 3634546, 7269092, 9086365, 12720911, 18172730, 25441822, 36345460, 50883644, 63604555, 127209110, 254418220]

約数ペア:

[(1, 254418220), (2, 127209110), (4, 63604555), (5, 50883644), (7, 36345460), (10, 25441822), (14, 18172730), (20, 12720911), (28, 9086365), (35, 7269092), (70, 3634546), (140, 1817273)]