840505988

素因数分解:

$2^2\times 7^1\times {\mathrm{1549}}^1\times {\mathrm{19379}}^1$

素因数の和:20939

約数の個数: 24

約数和(自身を含む): 1682184000

約数和(自身を除く): 841678012

約数列:

[1, 2, 4, 7, 14, 28, 1549, 3098, 6196, 10843, 19379, 21686, 38758, 43372, 77516, 135653, 271306, 542612, 30018071, 60036142, 120072284, 210126497, 420252994, 840505988]

約数ペア:

[(1, 840505988), (2, 420252994), (4, 210126497), (7, 120072284), (14, 60036142), (28, 30018071), (1549, 542612), (3098, 271306), (6196, 135653), (10843, 77516), (19379, 43372), (21686, 38758)]