128321568

素因数分解:

$2^5\times 3^2\times {\mathrm{199}}^1\times {\mathrm{2239}}^1$

素因数の和:2454

約数の個数: 72

約数和(自身を含む): 366912000

約数和(自身を除く): 238590432

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, 1194, 1592, 1791, 2239, 2388, 3184, 3582, 4478, 4776, 6368, 6717, 7164, 8956, 9552, 13434, 14328, 17912, 19104, 20151, 26868, 28656, 35824, 40302, 53736, 57312, 71648, 80604, 107472, 161208, 214944, 322416, 445561, 644832, 891122, 1336683, 1782244, 2673366, 3564488, 4010049, 5346732, 7128976, 8020098, 10693464, 14257952, 16040196, 21386928, 32080392, 42773856, 64160784, 128321568]

約数ペア:

[(1, 128321568), (2, 64160784), (3, 42773856), (4, 32080392), (6, 21386928), (8, 16040196), (9, 14257952), (12, 10693464), (16, 8020098), (18, 7128976), (24, 5346732), (32, 4010049), (36, 3564488), (48, 2673366), (72, 1782244), (96, 1336683), (144, 891122), (199, 644832), (288, 445561), (398, 322416), (597, 214944), (796, 161208), (1194, 107472), (1592, 80604), (1791, 71648), (2239, 57312), (2388, 53736), (3184, 40302), (3582, 35824), (4478, 28656), (4776, 26868), (6368, 20151), (6717, 19104), (7164, 17912), (8956, 14328), (9552, 13434)]