12989440

素因数分解:

$2^{10}\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:127

約数の個数: 88

約数和(自身を含む): 32424480

約数和(自身を除く): 19435040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 59, 64, 80, 86, 118, 128, 160, 172, 215, 236, 256, 295, 320, 344, 430, 472, 512, 590, 640, 688, 860, 944, 1024, 1180, 1280, 1376, 1720, 1888, 2360, 2537, 2560, 2752, 3440, 3776, 4720, 5074, 5120, 5504, 6880, 7552, 9440, 10148, 11008, 12685, 13760, 15104, 18880, 20296, 22016, 25370, 27520, 30208, 37760, 40592, 44032, 50740, 55040, 60416, 75520, 81184, 101480, 110080, 151040, 162368, 202960, 220160, 302080, 324736, 405920, 649472, 811840, 1298944, 1623680, 2597888, 3247360, 6494720, 12989440]

約数ペア:

[(1, 12989440), (2, 6494720), (4, 3247360), (5, 2597888), (8, 1623680), (10, 1298944), (16, 811840), (20, 649472), (32, 405920), (40, 324736), (43, 302080), (59, 220160), (64, 202960), (80, 162368), (86, 151040), (118, 110080), (128, 101480), (160, 81184), (172, 75520), (215, 60416), (236, 55040), (256, 50740), (295, 44032), (320, 40592), (344, 37760), (430, 30208), (472, 27520), (512, 25370), (590, 22016), (640, 20296), (688, 18880), (860, 15104), (944, 13760), (1024, 12685), (1180, 11008), (1280, 10148), (1376, 9440), (1720, 7552), (1888, 6880), (2360, 5504), (2537, 5120), (2560, 5074), (2752, 4720), (3440, 3776)]