80493680

素因数分解:

$2^4\times 5^1\times {\mathrm{1006171}}^1$

素因数の和:1006184

約数の個数: 20

約数和(自身を含む): 187147992

約数和(自身を除く): 106654312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1006171, 2012342, 4024684, 5030855, 8049368, 10061710, 16098736, 20123420, 40246840, 80493680]

約数ペア:

[(1, 80493680), (2, 40246840), (4, 20123420), (5, 16098736), (8, 10061710), (10, 8049368), (16, 5030855), (20, 4024684), (40, 2012342), (80, 1006171)]