81540648

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{199}}^1\times {\mathrm{271}}^1$

素因数の和:492

約数の個数: 128

約数和(自身を含む): 261120000

約数和(自身を除く): 179579352

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 84, 108, 126, 168, 189, 199, 216, 252, 271, 378, 398, 504, 542, 597, 756, 796, 813, 1084, 1194, 1393, 1512, 1592, 1626, 1791, 1897, 2168, 2388, 2439, 2786, 3252, 3582, 3794, 4179, 4776, 4878, 5373, 5572, 5691, 6504, 7164, 7317, 7588, 8358, 9756, 10746, 11144, 11382, 12537, 14328, 14634, 15176, 16716, 17073, 19512, 21492, 22764, 25074, 29268, 33432, 34146, 37611, 42984, 45528, 50148, 51219, 53929, 58536, 68292, 75222, 100296, 102438, 107858, 136584, 150444, 161787, 204876, 215716, 300888, 323574, 377503, 409752, 431432, 485361, 647148, 755006, 970722, 1132509, 1294296, 1456083, 1510012, 1941444, 2265018, 2912166, 3020024, 3397527, 3882888, 4530036, 5824332, 6795054, 9060072, 10192581, 11648664, 13590108, 20385162, 27180216, 40770324, 81540648]

約数ペア:

[(1, 81540648), (2, 40770324), (3, 27180216), (4, 20385162), (6, 13590108), (7, 11648664), (8, 10192581), (9, 9060072), (12, 6795054), (14, 5824332), (18, 4530036), (21, 3882888), (24, 3397527), (27, 3020024), (28, 2912166), (36, 2265018), (42, 1941444), (54, 1510012), (56, 1456083), (63, 1294296), (72, 1132509), (84, 970722), (108, 755006), (126, 647148), (168, 485361), (189, 431432), (199, 409752), (216, 377503), (252, 323574), (271, 300888), (378, 215716), (398, 204876), (504, 161787), (542, 150444), (597, 136584), (756, 107858), (796, 102438), (813, 100296), (1084, 75222), (1194, 68292), (1393, 58536), (1512, 53929), (1592, 51219), (1626, 50148), (1791, 45528), (1897, 42984), (2168, 37611), (2388, 34146), (2439, 33432), (2786, 29268), (3252, 25074), (3582, 22764), (3794, 21492), (4179, 19512), (4776, 17073), (4878, 16716), (5373, 15176), (5572, 14634), (5691, 14328), (6504, 12537), (7164, 11382), (7317, 11144), (7588, 10746), (8358, 9756)]