72129681

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{457}}^1$

素因数の和:566

約数の個数: 48

約数和(自身を含む): 120032640

約数和(自身を除く): 47902959

約数列:

[1, 3, 9, 13, 19, 39, 57, 71, 117, 171, 213, 247, 457, 639, 741, 923, 1349, 1371, 2223, 2769, 4047, 4113, 5941, 8307, 8683, 12141, 17537, 17823, 26049, 32447, 52611, 53469, 78147, 97341, 112879, 157833, 292023, 338637, 421811, 616493, 1015911, 1265433, 1849479, 3796299, 5548437, 8014409, 24043227, 72129681]

約数ペア:

[(1, 72129681), (3, 24043227), (9, 8014409), (13, 5548437), (19, 3796299), (39, 1849479), (57, 1265433), (71, 1015911), (117, 616493), (171, 421811), (213, 338637), (247, 292023), (457, 157833), (639, 112879), (741, 97341), (923, 78147), (1349, 53469), (1371, 52611), (2223, 32447), (2769, 26049), (4047, 17823), (4113, 17537), (5941, 12141), (8307, 8683)]