388764909

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{977}}^1$

素因数の和:1194

約数の個数: 48

約数和(自身を含む): 640785600

約数和(自身を除く): 252020691

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 179, 247, 537, 741, 977, 1611, 2223, 2327, 2931, 3401, 6981, 8793, 10203, 12701, 18563, 20943, 30609, 38103, 44213, 55689, 114309, 132639, 167067, 174883, 241319, 397917, 524649, 723957, 1573947, 2171871, 2273479, 3322777, 6820437, 9968331, 20461311, 29904993, 43196101, 129588303, 388764909]

約数ペア:

[(1, 388764909), (3, 129588303), (9, 43196101), (13, 29904993), (19, 20461311), (39, 9968331), (57, 6820437), (117, 3322777), (171, 2273479), (179, 2171871), (247, 1573947), (537, 723957), (741, 524649), (977, 397917), (1611, 241319), (2223, 174883), (2327, 167067), (2931, 132639), (3401, 114309), (6981, 55689), (8793, 44213), (10203, 38103), (12701, 30609), (18563, 20943)]