398603968

素因数分解:

$2^6\times 7^1\times {\mathrm{41}}^1\times {\mathrm{21701}}^1$

素因数の和:21761

約数の個数: 56

約数和(自身を含む): 926067744

約数和(自身を除く): 527463776

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 56, 64, 82, 112, 164, 224, 287, 328, 448, 574, 656, 1148, 1312, 2296, 2624, 4592, 9184, 18368, 21701, 43402, 86804, 151907, 173608, 303814, 347216, 607628, 694432, 889741, 1215256, 1388864, 1779482, 2430512, 3558964, 4861024, 6228187, 7117928, 9722048, 12456374, 14235856, 24912748, 28471712, 49825496, 56943424, 99650992, 199301984, 398603968]

約数ペア:

[(1, 398603968), (2, 199301984), (4, 99650992), (7, 56943424), (8, 49825496), (14, 28471712), (16, 24912748), (28, 14235856), (32, 12456374), (41, 9722048), (56, 7117928), (64, 6228187), (82, 4861024), (112, 3558964), (164, 2430512), (224, 1779482), (287, 1388864), (328, 1215256), (448, 889741), (574, 694432), (656, 607628), (1148, 347216), (1312, 303814), (2296, 173608), (2624, 151907), (4592, 86804), (9184, 43402), (18368, 21701)]