638001872

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{461}}^1\times {\mathrm{1291}}^1$

素因数の和:1827

約数の個数: 40

約数和(自身を含む): 1258273632

約数和(自身を除く): 620271760

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 461, 536, 922, 1072, 1291, 1844, 2582, 3688, 5164, 7376, 10328, 20656, 30887, 61774, 86497, 123548, 172994, 247096, 345988, 494192, 595151, 691976, 1190302, 1383952, 2380604, 4761208, 9522416, 39875117, 79750234, 159500468, 319000936, 638001872]

約数ペア:

[(1, 638001872), (2, 319000936), (4, 159500468), (8, 79750234), (16, 39875117), (67, 9522416), (134, 4761208), (268, 2380604), (461, 1383952), (536, 1190302), (922, 691976), (1072, 595151), (1291, 494192), (1844, 345988), (2582, 247096), (3688, 172994), (5164, 123548), (7376, 86497), (10328, 61774), (20656, 30887)]