156939280

素因数分解:

$2^4\times 5^1\times {\mathrm{1961741}}^1$

素因数の和:1961754

約数の個数: 20

約数和(自身を含む): 364884012

約数和(自身を除く): 207944732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1961741, 3923482, 7846964, 9808705, 15693928, 19617410, 31387856, 39234820, 78469640, 156939280]

約数ペア:

[(1, 156939280), (2, 78469640), (4, 39234820), (5, 31387856), (8, 19617410), (10, 15693928), (16, 9808705), (20, 7846964), (40, 3923482), (80, 1961741)]