28878495

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{421}}^1$

素因数の和:715

約数の個数: 32

約数和(自身を含む): 49222080

約数和(自身を除く): 20343585

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 269, 421, 807, 1263, 1345, 2105, 4035, 4573, 6315, 7157, 13719, 21471, 22865, 35785, 68595, 107355, 113249, 339747, 566245, 1698735, 1925233, 5775699, 9626165, 28878495]

約数ペア:

[(1, 28878495), (3, 9626165), (5, 5775699), (15, 1925233), (17, 1698735), (51, 566245), (85, 339747), (255, 113249), (269, 107355), (421, 68595), (807, 35785), (1263, 22865), (1345, 21471), (2105, 13719), (4035, 7157), (4573, 6315)]