28074280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{4153}}^1$

素因数の和:4190

約数の個数: 48

約数和(自身を含む): 68416380

約数和(自身を除く): 40342100

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 4153, 6760, 8306, 16612, 20765, 33224, 41530, 53989, 83060, 107978, 166120, 215956, 269945, 431912, 539890, 701857, 1079780, 1403714, 2159560, 2807428, 3509285, 5614856, 7018570, 14037140, 28074280]

約数ペア:

[(1, 28074280), (2, 14037140), (4, 7018570), (5, 5614856), (8, 3509285), (10, 2807428), (13, 2159560), (20, 1403714), (26, 1079780), (40, 701857), (52, 539890), (65, 431912), (104, 269945), (130, 215956), (169, 166120), (260, 107978), (338, 83060), (520, 53989), (676, 41530), (845, 33224), (1352, 20765), (1690, 16612), (3380, 8306), (4153, 6760)]