81913256

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{3877}}^1$

素因数の和:4041

約数の個数: 32

約数和(自身を含む): 162876000

約数和(自身を除く): 80962744

約数列:

[1, 2, 4, 8, 19, 38, 76, 139, 152, 278, 556, 1112, 2641, 3877, 5282, 7754, 10564, 15508, 21128, 31016, 73663, 147326, 294652, 538903, 589304, 1077806, 2155612, 4311224, 10239157, 20478314, 40956628, 81913256]

約数ペア:

[(1, 81913256), (2, 40956628), (4, 20478314), (8, 10239157), (19, 4311224), (38, 2155612), (76, 1077806), (139, 589304), (152, 538903), (278, 294652), (556, 147326), (1112, 73663), (2641, 31016), (3877, 21128), (5282, 15508), (7754, 10564)]