81628883

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{457}}^1$

素因数の和:579

約数の個数: 32

約数和(自身を含む): 105523200

約数和(自身を除く): 23894317

約数列:

[1, 7, 17, 19, 79, 119, 133, 323, 457, 553, 1343, 1501, 2261, 3199, 7769, 8683, 9401, 10507, 25517, 36103, 54383, 60781, 147611, 178619, 252721, 613751, 685957, 1033277, 4296257, 4801699, 11661269, 81628883]

約数ペア:

[(1, 81628883), (7, 11661269), (17, 4801699), (19, 4296257), (79, 1033277), (119, 685957), (133, 613751), (323, 252721), (457, 178619), (553, 147611), (1343, 60781), (1501, 54383), (2261, 36103), (3199, 25517), (7769, 10507), (8683, 9401)]