406923904

素因数分解:

$2^7\times {\mathrm{157}}^1\times {\mathrm{20249}}^1$

素因数の和:20420

約数の個数: 32

約数和(自身を含む): 815872500

約数和(自身を除く): 408948596

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 157, 314, 628, 1256, 2512, 5024, 10048, 20096, 20249, 40498, 80996, 161992, 323984, 647968, 1295936, 2591872, 3179093, 6358186, 12716372, 25432744, 50865488, 101730976, 203461952, 406923904]

約数ペア:

[(1, 406923904), (2, 203461952), (4, 101730976), (8, 50865488), (16, 25432744), (32, 12716372), (64, 6358186), (128, 3179093), (157, 2591872), (314, 1295936), (628, 647968), (1256, 323984), (2512, 161992), (5024, 80996), (10048, 40498), (20096, 20249)]