388179988

素因数分解:

$2^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{227}}^1\times {\mathrm{389}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 786764160

約数和(自身を除く): 398584172

約数列:

[1, 2, 4, 7, 14, 28, 157, 227, 314, 389, 454, 628, 778, 908, 1099, 1556, 1589, 2198, 2723, 3178, 4396, 5446, 6356, 10892, 35639, 61073, 71278, 88303, 122146, 142556, 176606, 244292, 249473, 353212, 427511, 498946, 618121, 855022, 997892, 1236242, 1710044, 2472484, 13863571, 27727142, 55454284, 97044997, 194089994, 388179988]

約数ペア:

[(1, 388179988), (2, 194089994), (4, 97044997), (7, 55454284), (14, 27727142), (28, 13863571), (157, 2472484), (227, 1710044), (314, 1236242), (389, 997892), (454, 855022), (628, 618121), (778, 498946), (908, 427511), (1099, 353212), (1556, 249473), (1589, 244292), (2198, 176606), (2723, 142556), (3178, 122146), (4396, 88303), (5446, 71278), (6356, 61073), (10892, 35639)]