81428756

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{24917}}^1$

素因数の和:24983

約数の個数: 24

約数和(自身を含む): 153494880

約数和(自身を除く): 72066124

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 817, 1634, 3268, 24917, 49834, 99668, 473423, 946846, 1071431, 1893692, 2142862, 4285724, 20357189, 40714378, 81428756]

約数ペア:

[(1, 81428756), (2, 40714378), (4, 20357189), (19, 4285724), (38, 2142862), (43, 1893692), (76, 1071431), (86, 946846), (172, 473423), (817, 99668), (1634, 49834), (3268, 24917)]