51981984

素因数分解:

$2^5\times 3^2\times {\mathrm{199}}^1\times {\mathrm{907}}^1$

素因数の和:1122

約数の個数: 72

約数和(自身を含む): 148730400

約数和(自身を除く): 96748416

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 199, 288, 398, 597, 796, 907, 1194, 1592, 1791, 1814, 2388, 2721, 3184, 3582, 3628, 4776, 5442, 6368, 7164, 7256, 8163, 9552, 10884, 14328, 14512, 16326, 19104, 21768, 28656, 29024, 32652, 43536, 57312, 65304, 87072, 130608, 180493, 261216, 360986, 541479, 721972, 1082958, 1443944, 1624437, 2165916, 2887888, 3248874, 4331832, 5775776, 6497748, 8663664, 12995496, 17327328, 25990992, 51981984]

約数ペア:

[(1, 51981984), (2, 25990992), (3, 17327328), (4, 12995496), (6, 8663664), (8, 6497748), (9, 5775776), (12, 4331832), (16, 3248874), (18, 2887888), (24, 2165916), (32, 1624437), (36, 1443944), (48, 1082958), (72, 721972), (96, 541479), (144, 360986), (199, 261216), (288, 180493), (398, 130608), (597, 87072), (796, 65304), (907, 57312), (1194, 43536), (1592, 32652), (1791, 29024), (1814, 28656), (2388, 21768), (2721, 19104), (3184, 16326), (3582, 14512), (3628, 14328), (4776, 10884), (5442, 9552), (6368, 8163), (7164, 7256)]