20158400

素因数分解:

$2^6\times 5^2\times {\mathrm{43}}^1\times {\mathrm{293}}^1$

素因数の和:358

約数の個数: 84

約数和(自身を含む): 50929032

約数和(自身を除く): 30770632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 43, 50, 64, 80, 86, 100, 160, 172, 200, 215, 293, 320, 344, 400, 430, 586, 688, 800, 860, 1075, 1172, 1376, 1465, 1600, 1720, 2150, 2344, 2752, 2930, 3440, 4300, 4688, 5860, 6880, 7325, 8600, 9376, 11720, 12599, 13760, 14650, 17200, 18752, 23440, 25198, 29300, 34400, 46880, 50396, 58600, 62995, 68800, 93760, 100792, 117200, 125990, 201584, 234400, 251980, 314975, 403168, 468800, 503960, 629950, 806336, 1007920, 1259900, 2015840, 2519800, 4031680, 5039600, 10079200, 20158400]

約数ペア:

[(1, 20158400), (2, 10079200), (4, 5039600), (5, 4031680), (8, 2519800), (10, 2015840), (16, 1259900), (20, 1007920), (25, 806336), (32, 629950), (40, 503960), (43, 468800), (50, 403168), (64, 314975), (80, 251980), (86, 234400), (100, 201584), (160, 125990), (172, 117200), (200, 100792), (215, 93760), (293, 68800), (320, 62995), (344, 58600), (400, 50396), (430, 46880), (586, 34400), (688, 29300), (800, 25198), (860, 23440), (1075, 18752), (1172, 17200), (1376, 14650), (1465, 13760), (1600, 12599), (1720, 11720), (2150, 9376), (2344, 8600), (2752, 7325), (2930, 6880), (3440, 5860), (4300, 4688)]