338428

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:157

約数の個数: 24

約数和(自身を含む): 642320

約数和(自身を除く): 303892

約数列:

[1, 2, 4, 19, 38, 61, 73, 76, 122, 146, 244, 292, 1159, 1387, 2318, 2774, 4453, 4636, 5548, 8906, 17812, 84607, 169214, 338428]

約数ペア:

[(1, 338428), (2, 169214), (4, 84607), (19, 17812), (38, 8906), (61, 5548), (73, 4636), (76, 4453), (122, 2774), (146, 2318), (244, 1387), (292, 1159)]