1557630160

素因数分解:

$2^4\times 5^1\times {\mathrm{19470377}}^1$

素因数の和:19470390

約数の個数: 20

約数和(自身を含む): 3621490308

約数和(自身を除く): 2063860148

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 19470377, 38940754, 77881508, 97351885, 155763016, 194703770, 311526032, 389407540, 778815080, 1557630160]

約数ペア:

[(1, 1557630160), (2, 778815080), (4, 389407540), (5, 311526032), (8, 194703770), (10, 155763016), (16, 97351885), (20, 77881508), (40, 38940754), (80, 19470377)]