25373440

素因数分解:

$2^8\times 5^1\times {\mathrm{43}}^1\times {\mathrm{461}}^1$

素因数の和:525

約数の個数: 72

約数和(自身を含む): 62325648

約数和(自身を除く): 36952208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 320, 344, 430, 461, 640, 688, 860, 922, 1280, 1376, 1720, 1844, 2305, 2752, 3440, 3688, 4610, 5504, 6880, 7376, 9220, 11008, 13760, 14752, 18440, 19823, 27520, 29504, 36880, 39646, 55040, 59008, 73760, 79292, 99115, 118016, 147520, 158584, 198230, 295040, 317168, 396460, 590080, 634336, 792920, 1268672, 1585840, 2537344, 3171680, 5074688, 6343360, 12686720, 25373440]

約数ペア:

[(1, 25373440), (2, 12686720), (4, 6343360), (5, 5074688), (8, 3171680), (10, 2537344), (16, 1585840), (20, 1268672), (32, 792920), (40, 634336), (43, 590080), (64, 396460), (80, 317168), (86, 295040), (128, 198230), (160, 158584), (172, 147520), (215, 118016), (256, 99115), (320, 79292), (344, 73760), (430, 59008), (461, 55040), (640, 39646), (688, 36880), (860, 29504), (922, 27520), (1280, 19823), (1376, 18440), (1720, 14752), (1844, 13760), (2305, 11008), (2752, 9220), (3440, 7376), (3688, 6880), (4610, 5504)]