28140252

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{643}}^1$

素因数の和:1178

約数の個数: 48

約数和(自身を含む): 75301632

約数和(自身を除く): 47161380

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 521, 643, 1042, 1286, 1563, 1929, 2084, 2572, 3126, 3647, 3858, 4501, 6252, 7294, 7716, 9002, 10941, 13503, 14588, 18004, 21882, 27006, 43764, 54012, 335003, 670006, 1005009, 1340012, 2010018, 2345021, 4020036, 4690042, 7035063, 9380084, 14070126, 28140252]

約数ペア:

[(1, 28140252), (2, 14070126), (3, 9380084), (4, 7035063), (6, 4690042), (7, 4020036), (12, 2345021), (14, 2010018), (21, 1340012), (28, 1005009), (42, 670006), (84, 335003), (521, 54012), (643, 43764), (1042, 27006), (1286, 21882), (1563, 18004), (1929, 14588), (2084, 13503), (2572, 10941), (3126, 9002), (3647, 7716), (3858, 7294), (4501, 6252)]