399314512

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{461}}^1\times {\mathrm{1259}}^1$

素因数の和:1771

約数の個数: 40

約数和(自身を含む): 794011680

約数和(自身を除く): 394697168

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 461, 688, 922, 1259, 1844, 2518, 3688, 5036, 7376, 10072, 19823, 20144, 39646, 54137, 79292, 108274, 158584, 216548, 317168, 433096, 580399, 866192, 1160798, 2321596, 4643192, 9286384, 24957157, 49914314, 99828628, 199657256, 399314512]

約数ペア:

[(1, 399314512), (2, 199657256), (4, 99828628), (8, 49914314), (16, 24957157), (43, 9286384), (86, 4643192), (172, 2321596), (344, 1160798), (461, 866192), (688, 580399), (922, 433096), (1259, 317168), (1844, 216548), (2518, 158584), (3688, 108274), (5036, 79292), (7376, 54137), (10072, 39646), (19823, 20144)]