51489920

素因数分解:

$2^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1871}}^1$

素因数の和:1933

約数の個数: 64

約数和(自身を含む): 126023040

約数和(自身を除く): 74533120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 320, 344, 430, 640, 688, 860, 1376, 1720, 1871, 2752, 3440, 3742, 5504, 6880, 7484, 9355, 13760, 14968, 18710, 27520, 29936, 37420, 59872, 74840, 80453, 119744, 149680, 160906, 239488, 299360, 321812, 402265, 598720, 643624, 804530, 1197440, 1287248, 1609060, 2574496, 3218120, 5148992, 6436240, 10297984, 12872480, 25744960, 51489920]

約数ペア:

[(1, 51489920), (2, 25744960), (4, 12872480), (5, 10297984), (8, 6436240), (10, 5148992), (16, 3218120), (20, 2574496), (32, 1609060), (40, 1287248), (43, 1197440), (64, 804530), (80, 643624), (86, 598720), (128, 402265), (160, 321812), (172, 299360), (215, 239488), (320, 160906), (344, 149680), (430, 119744), (640, 80453), (688, 74840), (860, 59872), (1376, 37420), (1720, 29936), (1871, 27520), (2752, 18710), (3440, 14968), (3742, 13760), (5504, 9355), (6880, 7484)]