81648

素因数分解:

$2^4\times 3^6\times 7^1$

素因数の和:33

約数の個数: 70

約数和(自身を含む): 271064

約数和(自身を除く): 189416

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 36, 42, 48, 54, 56, 63, 72, 81, 84, 108, 112, 126, 144, 162, 168, 189, 216, 243, 252, 324, 336, 378, 432, 486, 504, 567, 648, 729, 756, 972, 1008, 1134, 1296, 1458, 1512, 1701, 1944, 2268, 2916, 3024, 3402, 3888, 4536, 5103, 5832, 6804, 9072, 10206, 11664, 13608, 20412, 27216, 40824, 81648]

約数ペア:

[(1, 81648), (2, 40824), (3, 27216), (4, 20412), (6, 13608), (7, 11664), (8, 10206), (9, 9072), (12, 6804), (14, 5832), (16, 5103), (18, 4536), (21, 3888), (24, 3402), (27, 3024), (28, 2916), (36, 2268), (42, 1944), (48, 1701), (54, 1512), (56, 1458), (63, 1296), (72, 1134), (81, 1008), (84, 972), (108, 756), (112, 729), (126, 648), (144, 567), (162, 504), (168, 486), (189, 432), (216, 378), (243, 336), (252, 324)]