81225378

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{1109}}^1$

素因数の和:1443

約数の個数: 48

約数和(自身を含む): 190302840

約数和(自身を除く): 109077462

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 313, 626, 939, 1109, 1878, 2218, 2817, 3327, 4069, 5634, 6654, 8138, 9981, 12207, 14417, 19962, 24414, 28834, 36621, 43251, 73242, 86502, 129753, 259506, 347117, 694234, 1041351, 2082702, 3124053, 4512521, 6248106, 9025042, 13537563, 27075126, 40612689, 81225378]

約数ペア:

[(1, 81225378), (2, 40612689), (3, 27075126), (6, 13537563), (9, 9025042), (13, 6248106), (18, 4512521), (26, 3124053), (39, 2082702), (78, 1041351), (117, 694234), (234, 347117), (313, 259506), (626, 129753), (939, 86502), (1109, 73242), (1878, 43251), (2218, 36621), (2817, 28834), (3327, 24414), (4069, 19962), (5634, 14417), (6654, 12207), (8138, 9981)]